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Intra-abdominal necrotic lipoma diagnosed as a paraprostatic cyst by CT scan
Hye-jin Kim, Su-yeon Kim, Seong-soo Kim, Soo-kyung Yun, Jeo-soon Lee, Sung-kyun Hong, Wan-hee Kim, Yong-baek Kim, Jung-hee Yoon, Min-cheol Choi*
Department of Veterinary Medical Imaging and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
Correspondence to: Tel: +82-2-880-1278; Fax: +82-2-880-8662; E-mail: mcchoi@snu.ac.kr
Received: August 12, 2016; Revised: February 3, 2017; Accepted: February 22, 2017; Published online: April 6, 2017.
A dog with a history of diarrhea, dyschezia showed an oval shaped, soft tissue opacity mass was identified in the abdomen on radiographs. CT examination revealed a large fluid-filled structure which displaced the UB, prostate and colon. The mass has continuity with the prostate. Therefore it was tentatively diagnosed as a paraprostatic cyst. Cytologic examination was performed and it was considered as a non-inflammatory cyst. After surgery, histopathologic examination revealed a necrotic, inflamed cystic lipoma. This case describes that unusual intra-abdominal lipomas may have cystic appearance.
Keywords: lipoma, paraprostatic cyst, diagnostic imaging, surgery, dog

© 2017 The Korean Society of Veterinary Science.