Hemangiopericytoma in a senior cat - a case report

Abstract

Even though hemangiopericytoma cases are common in humans and dogs, research so far indicates that they rarely occur in cats. A 13-year-old cat was admitted to an animal hospital with a bleeding mass located close to the caudal mammary glands. No abnormalities were detected in the complete blood count or serum chemistry profile. Following the results of cytology of a fine needle aspiration sample, complete removal of the mass was performed. Hemangiopericytoma was diagnosed by pathological and immunohistochemical analyses of the mass with CD31, vimentin, desmin, SMA, GFAP, SOX-10, S100B and pan-Cytokeratin. Metastasis or recurrence was not observed in the 10-month period after surgery. Compared to previous cases of feline hemangiopericytoma, this is the first cytologically examined tumor located in the mammary gland region, and represents the fourth feline hemangiopericytoma case in the literature.