Myxofibrosarcoma ofthe penis inan African pygmy hedgehog (Atelerix albiventris) - Aclinical case.

Abstract

A3-year-old, 420g, intact male African pygmy hedgehog (Atelerix albiventris) was presented with asudden appearance ofamass protruding from its preputium. Adetailed physical examination revealed the presence ofapolyp-like mass, connected tothe mucous membrane ofthe penis and asecond, multilobular mass with alarger base. Both masses were surgically removed. While the histopathological examination ofthe polyp-like massrevealed only achronic active inflammatory reaction, the histopathological examination ofthe multilobularmass revealed atumorous tissue composed ofspindle-shaped cells, irregularly oval orpolygonal insome places. Focal tumour cells with amyxoid differentiation were observed inthe greater part ofthis tumour. The stroma was made up ofsparse fibrous tissue. The surface epithelium was hyperplastic with ulcerations and necrosis. Thetumour was classified asamyxofibrosarcoma. Two weeks post-surgery, the patient did not show any clinical signs ofthepresented disease. According toour knowledge, this isthe first published case ofthe surgical treatment ofpenile myxofibrosarcoma inan African pygmy hedgehog.