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Mammary Squamous Cell Carcinoma in a Collard Peccary (Tayassy Tajacu)  

Lee, So-Young (Department of Veterinary Internal Medicine and Konkuk University)
Yoo, Jong-Hyun (BK21Basic & Diagnostic Veterinary Specialist Program for Animal Diseases, College of Veterinary Medicine and Konkuk University)
Park, Chul (Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis)
Sur, Jung-Hyang (Department of Veterinary Pathology and Konkuk University)
Park, Hee-Myung (Department of Veterinary Internal Medicine Konkuk University)
Publication Information
Journal of Veterinary Clinics / v.26, no.4, 2009 , pp. 386-390 More about this Journal
Abstract
A 10-year-old female collared peccary (Tayassu tajacu) was referred due to a large palpable mass in caudal abdomen. Physical examination revealed a firm and freely moveable mass (15 ${\times}$ 9 cm) in the right side of caudal abdomen. Thoracic radiographic findings revealed a few well circumscribed nodules. This case was diagnosed as mammary gland squamous cell carcinoma with pulmonary metastasis based on histopathological and immunohistochemical findings. This type of mammary gland tumors is uncommon in wild animals. The patient survived for one month after the diagnosis. This is the first case report of mammary squamous cell carcinoma in a collard peccary and the second case report of metastatic carcinoma to lung in a collared peccary.
Keywords
collared peccary; immunohistochemical stain; mammary squamous cell carcinoma; collared peccary;
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