title: Intramural pseudocyst of the duodenum caused by pancreatic head cancer: report of a case.
abstract: An intramural pseudocyst in the alimentary tract develops as a rare complication of acute pancreatitis or trauma. A 60-year-old woman with pancreatic head cancer underwent preoperative radiological examinations, which revealed a 45-mm cystic mass around the second portion of the duodenum. Endoscopic ultrasonography confirmed a cystic lesion in the submucosal layer of the duodenum and fine needle aspiration cytology of the cystic contents suggested adenocarcinoma. The cystic fluid was amylase-rich, at 17040 U/l. We performed pancreaticoduodenectomy for the pancreatic head cancer. Pancreatography of the resected specimen showed a communication between the main pancreatic duct and the cystic lesion. The cut surface of the resected specimen revealed a cystic lesion, which surrounded the duodenum. Pathologically, the cystic lesion was diagnosed as a pseudocyst, located between the dissociated smooth muscle layers of the duodenum.
authors.affiliation: Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, 1007, Shimo-Nagakubo, Sunto-Nagaizumi, Shizuoka, 411-8777, Japan. t.sugiura@scchr.jp
authors.forename: Teiichi
authors.initials: T
authors.lastname: Sugiura
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Uesaka
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kanomata
authors.forename: Keiko
authors.initials: K
authors.lastname: Sasaki
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Kanemoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Mizuno
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D003560:Cysts / Q000175:diagnosis* / Q000209:etiology; D004378:Duodenal Diseases / Q000175:diagnosis* / Q000209:etiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000150:complications*