Apocrine sweat gland adenocarcinoma in a cat
2009
Park, M.H., Jeju National University, Jeju, Republic of Korea | Jung, J.Y., Jeju National University, Jeju, Republic of Korea | Jo, S.H., Jeju National University, Jeju, Republic of Korea | Kim, J.H., Jeju National University, Jeju, Republic of Korea | Lee, J.Y., Cats and Dogs Animal Clinic, Seoul, Republic of Korea | Lee, M.K., Cats and Dogs Animal Clinic, Seoul, Republic of Korea | Kim, J.H., Jeju National University, Jeju, Republic of Korea
A 11-year-old female mixed cat with subcutaneous mass around the left 5th mammary glands was presented to local animal hospital. According to history taking, the mass recurred 2 times on the same site of abdomen. After surgical excision, subcutaneous mass was referred to Pathology Department of Veterinary Medicine in the Jeju National University. Grossly, round to oval, milky yellow or pale red nodules, measuring 0.1~1 cm in diameter, were occupied in the subcutis. Microscopically, the most neoplastic sweat glands were proliferated in the dermis and subcutis. Most tubules were lined by round to oval shaped epithelium with eosinophilic cytoplasm, hyperchromatic nuclei with high mitotic figures and severe central necrosis. The neoplastic epithelium also had periodic acid-Schiff-positive diastase-resistant cytoplasmic granules, but was negative for Perl's iron stain. Based on the gross, histopathologic and special staining, this cat was diagnosed as apocrine sweat gland adenocarcinoma. In our best knowledge, this is the first report of apocrine sweat gland adenocarcinoma around abdominal mammary gland in a cat.
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