A CASE OF A PSEUDOCYST OF THE RETROPERITONEUM

• Published in: Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) Vol. 66; no. 9; pp. 2311 - 2314
• Main Authors: YANO, Takaaki, AKAMOTO, Shintaro, YACHIDA, Shinichi, WAKABAYASHI, Hisao, USUKI, Hisashi, MEATA, Hajime
• Format: Journal Article
• Language: English
• Published: Japan Surgical Association 2005
• Subjects: FDG-PET
• ISSN: 1345-2843; 1882-5133
• DOI: 10.3919/jjsa.66.2311

We report a case of a pseudocyst of the retroperitoneum. A 47-year-old woman was admitted to the hospital for the treatment of a palpable upper abdominal mass. Abdominal ultrasonography and CT scan revealed a unilocular cyst about 10cm in diameter below the left kidney. The preoperative diagnosis was a cyst of the mesentery, and a cystectomy was performed. The 12×9×10cm cyst with a yellowish white capsule was originated from the retroperitoneum. The surface of the 12-cm diameter cyst was white and smooth. The cyst contained a serous yellowish fluid. Microscopically, the wall of the cyst was composed of thick, fibrous tissue, lacking an epithelial lining. Pseudocyst of the retroperitoneum was definitely diagnosed. Pseudocysts of the retroperitoneum are rare, and there have been only ten reports including ours in Japan.