Asymptomatic somatostatinoma of the pancreatic head: Report of a case
2010
A 44-year-old man was attending routine follow-up 5 years after colon cancer resection, when ultrasonography detected a pancreatic tumor with a low echoic area. He had no symptoms. Computed tomography (CT) showed a protruding-type tumor, 4 cm in diameter, in the pancreatic head with central necrosis. Angiography revealed that the tumor was hypervascular. The serum somatostatin level was elevated, at 27 pg/ml (normal range, 1.0–12 pg/ml). As somatostatinoma of the pancreas was suspected, we performed pylorus-preserving pancreaticoduodenectomy. Histological and immunohistochemical staining confirmed somatostatinoma of the pancreas without nodal metastasis. Thus, if an endocrine tumor of the pancreas is suspected in a patient with a hypervascular tumor, the possibility of somatostatinoma should be included in the differential diagnosis.
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