Pathological and molecular detection of a rare case of cutaneous cryptococcosis in a 9-year-old horse

Faculty Veterinary Medicine Year: 2020
Type of Publication: ZU Hosted Pages: 883-886
Authors:
Journal: Comparative Clinical Pathology Springer-Verlag London Lt Volume: 29
Keywords : Pathological , molecular detection , , rare case , cutaneous    
Abstract:
This report describes a rare case of primary cutaneous cryptococcosis in equines. A young gelding horse was presented with facial masses showing ulcerations and yellowish discharge. Histopathological examination of biopsy specimens showed a dermal granulomatous reaction containing neutrophils, macrophages, and giant cells. In addition, numerous spherical yeast-like organ- isms were clearly observed within the granulomatous reaction. We suspected that the observed organisms belong to the Cryptococcus spp., which was indeed by its shape on Sabouraud dextrose agar, Gram-stained smear suggestive C. neoformans, and confirmed on PCR. Our report is one of the worldwide rare reports linking cryptococcosis to cutaneous granuloma in equines and the first to provide a molecular confirmation of the cryptococcal involvement. The report highlights the importance of considering cryptococcosis in differential diagnosis of infectious cutaneous masses in equines.
   
     
 
       

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