Abstract:
:Non-neoplastic tumor-like lesions in the pancreas are uncommon. Here, we present a case of multiple solid pancreatic hamartomas in a 78-year-old Japanese woman. Her computed tomography revealed a pancreatic mass, measuring 1.8 cm in maximum diameter. However, no symptoms were found. She was not an alcoholic and had no history of pancreatitis. The patient underwent a pancreatoduodenectomy, and three well-demarcated solid nodules measuring 1.7 cm, 0.4 cm, and 0.3 cm in diameter were found in the pancreatic head. Microscopically, the lesions were composed of non-neoplastic, disarranged acinar cells and ducts embedded in a sclerotic stroma with elongated spindle cells that lacked discrete islets. The stromal spindle cells were immunoreactive for CD34 and CD117. The histological diagnosis was multiple solid hamartomas of the pancreas. There has been no recurrence 30 mo after surgery. So far, 18 cases of pancreatic hamartoma have been reported in the English literature, including our case. Six out of these 18 cases seemed to fit the criteria of solid pancreatic hamartoma. Although the number of cases was limited, solid pancreatic hamartomas seem to be benign tumor-like lesions, which are found incidentally in healthy middle-aged adults, but occasionally involve the whole pancreas, resulting in a poor prognosis. Solid pancreatic hamartoma was sometimes associated with minor pancreatic abnormality, and multiple small lesions other than the main tumors were detected in a small number of cases. From these findings, one may speculate that solid pancreatic hamartoma could be the result of a malformation during the development of the pancreas.
journal_name
World J Gastrointest Oncoljournal_title
World journal of gastrointestinal oncologyauthors
Kawakami F,Shimizu M,Yamaguchi H,Hara S,Matsumoto I,Ku Y,Itoh Tdoi
10.4251/wjgo.v4.i9.202subject
Has Abstractpub_date
2012-09-15 00:00:00pages
202-6issue
9issn
1948-5204journal_volume
4pub_type
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