Squamous cell carcinoma in two snow leopards (uncia uncia) with unusual auricular presentation
2017
Quintard, Benoît | Greunz, Eva Maria | Lefaux, Brice | Lemberger, Karin | Leclerc, Antoine
Squamous cell carcinoma (SCC) is well documented in snow leopards (Uncia uncia) and most common locations are oral, facial, or pedal. These two cases illustrate an unusual auricular presentation, which is more often reported in white domestic cats. The animals were aged and presented clinical signs of otitis such as head shaking and ear scratching. Clinical examinations showed auricular canal masses with chronic purulent otitis. In both cases, clinical deterioration led to euthanasia and histology of the ear canal was consistent with SCC and showed numerous vascular emboli. These cases illustrate an unreported aggressive localization for SCC in snow leopards, which should be included in the differential diagnosis of otitis in this species. Auricular SCC may be underdiagnosed as the ear canal is infrequently sampled for histopathology. This auricular localization should be considered when metastases are found upon necropsy without internal primary tumor.
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