A Wolf in Sheep's Clothing: A Non-Functioning Islet Cell Tumor of the Pancreas Masquerading as a Microcystic (Serous Cystic) Adenoma

(Journal Article): A Wolf in Sheep's Clothing: A Non-Functioning Islet Cell Tumor of the Pancreas Masquerading as a Microcystic (Serous Cystic) Adenoma

Gerke H, Byrne MF, Xie HB, Paulson EK, Tyler DS, Baillie J, Jowell PS (Division of Gastroenterology, Department of Medicine, Duke University Medical Center. Durham, NC, USA, henninggerke@web.de )

IN: JOP. J Pancreas (Online) 2004; 05(4):225-230

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ABSTRACT: CONTEXT: The endosonographic appearance of a microcystic honeycomb lesion of the pancreas usually indicates a serous cystic adenoma. CASE REPORT: We report a case of a non-functioning islet cell tumor that has the typical microcystic honeycomb appearance of a serous cystic adenoma. The implications for endoscopic ultrasound diagnosis and management of cystic pancreatic lesions are discussed. CONCLUSION: Islet cell tumors are a rare differential diagnosis of microcystic pancreatic lesions. If fine needle aspiration remains non-diagnostic preoperative distinction from serous cystic adenomas may be impossible.

TYPE OF PUBLICATION: Case Report

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