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Medical Imaging of Thymoma in a Dog  

Choi, Ho-Jung (College of Veterinary Medicine, Chungnam National University)
Lee, Young-Won (College of Veterinary Medicine, Chungnam National University)
Kim, Jae-Hoon (College of Veterinary Medicine, Jeju National University)
Shin, Chang-Ho (Research Institute of Life Sciences, Gyeongsang National University)
Park, Ki-Tae (Research Institute of Life Sciences, Gyeongsang National University)
Yeon, Seong-Chan (Research Institute of Life Sciences, Gyeongsang National University)
Lee, Hyo-Jong (Research Institute of Life Sciences, Gyeongsang National University)
Lee, Hee-Chun (Research Institute of Life Sciences, Gyeongsang National University)
Publication Information
Journal of Veterinary Clinics / v.28, no.4, 2011 , pp. 460-465 More about this Journal
Abstract
A 15-year-old, castrated male shih-tzu dog was referred to Veterinary Medical Teaching Hospital of Gyeongsang National University due to dyspnea, anorexia, depression of 1 week's duration. On thoracic radiography, triangular shaped soft tissue opacity mass presented in the left cranial lung lobe region. On computed tomography, there was a $3.8{\times}2.5$ cm mass in the left thoracic cavity, which was lobulated and adhered to ventral pleural surface. Histopathologically, the neoplastic cell population consisted of a lot of lymphocytes and a few of Hassal's corpuscles. The immunohistochemistry, lymphocytes were diffusely positive for CD3 and focal positive $CD79{\alpha}$. Based on gross, histologic, and immunohistochemical findings, the neoplasm was diagnosed a lymphocyte predominant thymoma.
Keywords
thymoma; mediastinal mass; radiography; computed tomography;
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