title: Microcytic adenoma coexistent with low-grade malignant islet cell tumor of the pancreas.
abstract: We report a case of microcystic (glycogen-rich) adenoma of the whole pancreas with coexistent pancreatic low-grade malignant islet cell tumor in a 29-year-old woman. She complained of nausea, vomiting, and growing abdominal mass. Abdominal computed tomography showed multiple cysts in the whole pancreas and a calcified solid mass in the pancreatic head. A Whipple's operation and total pancreatectomy with splenectomy was performed to treat pancreatic cystic neoplasm. The pancreas was entirely replaced by variable-sized, multilocular cysts, which were lined by a flattened-to-cuboidal glycogen-rich epithelium. Furthermore, in the head of the pancreas, a focal yellowish solid mass showed a positive reaction for chromogranin A and neuron-specific enolase. Careful examination of the pancreas is warranted in cases of microcystic adenoma to rule out a possible coexistent pancreatic malignancy.
authors.affiliation: Department of Internal Medicine, Ewha Womans University Mokdong Hospital, Seoul, Korea.
authors.forename: H K
authors.initials: HK
authors.lastname: Jung
authors.forename: H Y
authors.initials: HY
authors.lastname: Son
authors.forename: H C
authors.initials: HC
authors.lastname: Lee
authors.forename: S Y
authors.initials: SY
authors.lastname: Yi
mesh_terms: D000328:Adult; D018273:Carcinoma, Islet Cell / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D018293:Cystadenoma, Serous / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D009378:Neoplasms, Multiple Primary; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed