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Non traumatic orbital lesions in emergent setting diagnosis with ct
Faculty
Medicine
Year:
2013
Type of Publication:
Theses
Pages:
125
Authors:
Amal Lotfy Abd Elatif
BibID
11785698
Keywords :
Radiodiagnosis
Abstract:
Nontraumatic orbital lesions are an important cause of visual impairment worldwide, with significant socioeconomic impact. Imaging provides crucial information regarding emergent orbital lesions, and the radiologist fulfills an important role in guiding patient care and contributing to favorable outcomes Imaging features of non traumatic orbital conditions commonly seen in the emergent setting, Infections, inflammatory lesions, vascular abnormalities, and retinal and choroidal detachments, are necessary to achieve accurate diagnosis, thereby avoiding permanent vision loss and other potentially devastating consequences (1)As far as the radiological investigations are concerned, findings on plain x-ray and ultrasonography which are a relatively inexpensive and safe method of evaluating the orbit but there are not pathognomonic of most of the orbital disease process. Though some help can be obtained in characterization of the lesion in certain cases (2Computed Tomography (CT) has a significant role in diagnosis of orbital lesions and differentiating variable pathological lesions. So CT has become a routine examination for non traumatic orbital lesions in the emergency department as the imaging findings were correlated with ophthalmologic observations (3).CT scanning is currently the best available technique for detection and localization of the extent of orbital lesions. Coronal and axial views of the orbit should be obtained, which help to define the relationship of an orbital lesion to the optic nerve, extraocular muscles, blood vessels, globe, sinuses and brain CT scans provide more information regarding bony landmarks, and are therefore, indispensable in surgical planning4.
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