Multiple Epulides vs Multifocal Fibrosarcoma in a Cat

This 2 1/2 year old female cat presented with multiple oral masses. The differential diagnosis includes two unlikely conditions. Multiple epulides and multifocal oral fibrosarcoma.

Multiple biopsies were taken.A pathologist with special interest in oral pathology from Colorado State University reviewed the findings and images. The diagnosis was multifocal oral fibrosarcoma.

Reports of management of mutifocal FSA do not exist in the veterinary literature. Immediate palliation of discomfort and elimination of trauma to the masses was recommended. Excision of the masses, extraction of associated teeth and contour of adjacent bone was the chosen conservative treatment.

These images were taken 18 months postoperatively. The owner reports no recurrence at two years postop. Although fibrosarcoma represents the second most common malignant oral tumor in cats, a search of reports of multifocal oral fibrosarcoma in cats revealed no findings.

The clinical outcome did not fit the histopathological diagnosis. The histopath slides were reviewed at CCOMP at the University of Wisconsin. The final diagnosis of mutliple epulides confirmed the clinical response. Please see the study on multiple epulides in the cat as described below.

Multiple Epulides in 13 Cats