title: [A case of serous cystic neoplasm with atypical imaging results suggestive of a prismatic internal structure].
abstract: The patient was a 67-year-old man with a 39-mm unilocular pancreatic tumor detected by computed tomography (CT). Further examinations with contrast-enhanced CT, magnetic resonance imaging, endoscopic ultrasonography, and endoscopic retrograde cholangiopancreatography revealed an internal heterogeneous structure attributed to bleeding or necrosis. Consequently, we expected either a pancreatic neuroendocrine tumor or a solid pseudopapillary neoplasm and performed pancreaticoduodenectomy. Pathological examination showed that the tumor had a denatured structure with evidence of internal bleeding and cubic epithelial cysts of various sizes. The final diagnosis was a macrocystic-type serous cystic neoplasm.
authors.affiliation: Department of Gastroenterology, Oita Red Cross Hospital.
authors.forename: Ryota
authors.initials: R
authors.lastname: Sagami
authors.forename: Hideyasu
authors.initials: H
authors.lastname: Nagamatsu
authors.forename: Kazumi
authors.initials: K
authors.lastname: Togou
authors.forename: Yuka
authors.initials: Y
authors.lastname: Yanai
authors.forename: Ken
authors.initials: K
authors.lastname: Takahashi
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Ueo
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Narita
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Ishida
authors.forename: Kengo
authors.initials: K
authors.lastname: Fukuzawa
authors.forename: Hirotoshi
authors.initials: H
authors.lastname: Yonemasu
mesh_terms: D000368:Aged; D018293:Cystadenoma, Serous / Q000473:pathology*; D003952:Diagnostic Imaging; D006801:Humans; D008297:Male; D010190:Pancreatic Neoplasms / Q000473:pathology*