Tubulopapillary Adenocarcinoma of the Mammary
Gland in an Amazon Jaguar (Panthera
onca)
Sung-ho Yun§,
Chun-ho Park 1§,
Hwan-soo Jang2, Sae-kwang Ku 3, Kwang-ho Jang
and Young-sam Kwon*
Department of Veterinary Surgery, College of
Veterinary Medicine, Kyungpook National University, Daegu 702-701,
Korea; 1Department of Veterinary Pathology, School of
Veterinary Medicine, Kitasato University, 23-35-1 Higashi, Towada,
Aomori 034-8628, Japan; 2Department of Pet Management,
Suseong College, Daegu 708-711, Korea; 3Department of
Anatomy and Histology, College of Oriental Medicine, Daegu Haany
University, Daegu, 712-715, Korea.
*Corresponding author: kwon@knu.ac.kr
Abstract
A 17-years-old, female Amazon jaguar (Panthera
onca)waspresented for a subcutaneous mass of the mammary gland. Surgical
excision and microscopic examination of the mass was performed.
Histopathologically, the mass was uncapsulated and composed of tubulopapillary
lobules of atypical round to polygonal epithelial cells. Tumor cells showed
invasive growth into the connective tissue of the dermis and mitotic figures
were frequently observed. Tumor cells also showed diffusely strong positive for
cytokeratin (CK) AE1/AE3, proliferation cell nuclear antigen (PCNA) and
Ki-67 antibodies. But, CK14,
vimentin and P63 immunoreactivity was mainly expressed in the myoepithelial cell
layer. Based on these pathological findings, present case was
diagnosed as tubulopapillary adenocarcinoma of the mammary gland of Amazon
Jaguar (Panthera onca).