A Case Report of Nonfunctioning Islet Cell Tumor with Extrapancreatic Growing

Minoru Amano, Hideaki Mori, Shunichi Matsukawa, Jumpei Maeda, Akimi Miyata, Masayoshi Hayashida, Junji Irie*, Tsutomu Tomioka**

Department of Surgery, *Department of Pathology, Nagasaki Municipal Hospital
**Second Department of Surgery, Nagasaki University School of Medicine

A rare case of a nonfunctioning islet cell tumor showing extrapancreatic growth is reported. A 56-year-old man was admitted to our hospital because of a left upper abdominal mass, which had been pointed out at a routine medical check-up. There were not associated obvious signs or symptoms caused by hypersecretion of pancreatic hormones. The tumor developed from the tail of the pancreas, and was resected by partial pancreatectomy. Its size was 13.6×11.8×9.4 cm and the weight was 900 g. Histopathological diagnosis was a nonfunctioning islet cell tumor with slight vascular invasion. The patient remains well with no evidence of recurrence three and half years after the operation.

Key words
nonfunctioning islet cell tumor, tumor of the pancreas

Reprint requests
Minoru Amano Department of Surgery, Nagasaki Municipal Hospital
6-39 Shinchi, Nagasaki, 850 JAPAN

Accepted
April 17, 1991

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