SummaryExtracorporeal Shock Wave Therapy (ESWT) refers to the clinical use of shock waves for orthopaedic applications. ESWT developed form studies on the possible side effects of Extracorporeal Shock Wave Lithotripsy (ESWL) on the spine and pelvis. These studies attracted the interest of orthopaedic surgeons, and eventually led to wide scale research and use of ESWT as an alternative to surgery.Shock wave generators are:(1) Electrohydraulic system.(2) Electromagnetic system.(3) Piezo-electric system.Target tissue localization is divided into:(1) Fluoroscopic localization.(2) Ultrasound localization.(3) Combined ultrasound and fluoroscopic localization.Several manufacturers have developed devices specifically for bone and contiguous soft tissue applications. Three of which are the Ossatron, the Epos, and the Sonocur.For every orthopaedic indication, there are specific number of shock wave pulses, specific energy flux density, specific duration of exposure, and specific number of cessions.Treatment can be done on an outpatient basis, and is usually performed without or under consumption of little anaesthetic drugs.The exact mechanism of action of ESWT on human tissues is still unclear. Several theories were done to explain it:? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.Summary and ConclusionThis study included 30 patients, they were 20 males and 10 females and their age ranged from 1 year to 15 years old.Detailed personal history was taken, full clinical examination and laboratory investigation were performed prior imaging.Abdominal distention was the most common presentation seen in 53.3% of cases.Ultrasonography and abdominal computed tomograhpy were performed in all cases.NHL accounts for about 63.3% of cases and HD for about 36.7% of cases.The results of these diagnostic modalities were recorded, analyzed and compared to the final diagnosis. Which was based on clinical follow up and histopathological findings.From the study we can conclude the following points:? HD and NHL may involve any organ or organ system where lymphoid tissue is found.? US are modalities of choice for the initial imaging of the abdomen and pelvis in children, the technique is non-invasive and? most children can be examined without sedation. The lack of exposure to radiation is important and examination can be repeated at frequent interval if required.? Sensitivity in the detection of different groups of lymph node enlargement is definitely higher using CT (100%) than US (70%).? Regarding accuracy in the evaluation of extranodal lymphoma CT was better than US with a sensitivity of (95%) and specificity of (90.9%). CT in addition to visualizing lymph node enlargement, offer more information about the extent of the lesion with involvement of the intra-abdominal nodes and extranodal organs.? On gastrointestinal lymphoma US can be used as an initial approach whenever there is a clinical suspicion of the intestinal lymphoma. However, the US demonstration of the small bowel loops may be obscured by over lying air in the adjacent loops, there fore, negative US findings cannot excluded the diagnosis of intestinal lymphoma, with a sensitivity of (55.6%) and specificity of (71.4%).? Regarding gastrointestinal lymphoma CT has been proven to be more sensitive than US in revealing bowel wall thickening with sensitivity of (100%), so CT must be performed for staging of the disease and assessment of the extension of the mass.