AUTHOR=Devereux Sacha L. , Baltzer Wendy I. , Piripi Susan A. , Owen Mark C. TITLE=Case Report: Adrenal Epithelial Cyst in an 11-Year-Old Leptailurus Serval JOURNAL=Frontiers in Veterinary Science VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2022.897469 DOI=10.3389/fvets.2022.897469 ISSN=2297-1769 ABSTRACT=Case Description

A serval (Leptailurus serval) presented for progressive enlargement of the right adrenal gland, which had been found incidentally on abdominal ultrasound 2 years previously and upon subsequent ultrasound examinations enlarged progressively from 1.26 to 1.43 cm.

Clinical Findings

Clinical signs had not been recorded by the zookeeper, however, progressive weight gain and lethargy were reported. Computed tomography (CT) confirmed the presence of a right caudal pole adrenal mass measuring 1.8 cm.

Treatment and Outcome

The right adrenal with associated mass was surgically resected via a ventral midline laparotomy that included the resection of the right phrenicoabdominal vein in association with the mass. Histopathological examination identified the mass as an epithelial cyst. Chromogranin A staining for a possible pheochromocytoma was performed but was negative. The serval recovered at the zoo without complication and has been on display for 18 months.

Clinical Relevance

Epithelial adrenal cysts have not been previously reported in felids. An adrenal cyst should be included on the differential list for any animal with an enlarged, slowly growing adrenal gland mass with non-specific clinical signs.