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Piccione co-authors article over the cytologic appearance of hibernoma in dogs

March 23, 2020 by Mallory Pfeifer

Clinical Pathology Section Head Julie Piccione, DVM, MS, DACVP recently co-authored an article over the cytologic appearance of hibernoma in dogs published in Veterinary Clinical Pathology. The abstract for the article is listed below.

Hibernomas are rare benign tumors of brown fat (adipose tissue) that have been reported in several different species. The cytologic characterization of these tumors has not been described in dogs. In this case report, we describe two dogs with hibernomas, focusing on the cytologic appearance of these unique neoplasms. Both cytologic specimens were highly cellular and predominated by vacuolated neoplastic cells with no evidence of concurrent inflammation. The cells contained a moderate to large number of variably sized cytoplasmic vacuoles, with occasional, irregularly shaped pink granular material. Most cells contained a single nucleus; however, cells displayed moderate anisokaryosis. A biopsy with histologic examination was performed in both cases, confirming the cytologic suspicion of hibernoma. Immunohistochemistry revealed that both tumors were positive for UCP1 and vimentin, and negative for cytokeratin. Hibernoma is an important differential diagnosis in dogs with conjunctival and periocular swellings that exfoliate numerous, mildly atypical, vacuolated cells.

Access the entire article by clicking here.

Filed Under: News, Research & Publications Tagged With: canine, clinical pathology, dogs, publication

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