すいｌｉｐｏｍａｔｏｕｓ　ｐｓｅｕｄｏｈｙｐｅｒｔｒｏｐｈｙの１例

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  • A CASE OF LIPOMATOUS PSEUDOHYPERTROPHY OF THE PANCREAS

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We report a very rare case of lipomatous pseudohypertrophy of the pancreas.<br> A 69-year-old man hospitalized for the control of diabetes was found to have gastric cancer. He was transferred to our department and underwent a distal gastrectomy. During the operation, we found a yellowish tumor-like fat tissue arising from the retroperitoneum near the body and tail of the pancreas. Liposarcoma was suspected, and the tumor was excised with the body and tail of the pancreas. It was 22×17.5×5cm in dimention, weighed 2kg, surrounded by a thin membrane, and was connected to the pancreatic tissue. Cut sections showed marked increase in adipose tissue, and no parenchyma of the pancreatic body could be seen. Histological examination of the tumor showed diffuse replacement of pancreatic parenchyma by adipose tissue. The pancreatic duct disappeared, but the islets of Langerhans were relatively preserved. No tumor change was observed, and so the pathological diagnosis was lipomatous pseudohypertrophy. We report this case with a review of the literature.

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