title: [A case of nonfunctioning islet cell tumor with extensive calcification].
abstract: A 52-year-old man was admitted for detailed examination of a mass with extensive calcification in the tail of the pancreas by fluoro-deoxy glucose-positron emission tomography/computed tomography (FDG-PET/CT). Abdominal CT and magnetic resonance imaging (MRI) findings showed a calcified tumor 5 cm in diameter with a smooth surface. The tumor mainly showed calcification at it center and a partially solid element around it margin which was enhanced in the early phase. With no definiture preoperative diagnossi, we performed distal pancreatectomy and splenectomy. Pathological and immunohistochemical studies revealed a nonfunctioning islet cell tumor with calcification. A nonfunctioning islet cell tumor with central calcification formation as it grew to a maximum diameter of 7 cm is rare. When diagnosing pancreatic tumors it must be kept in mind that some nonfunctioning islet cell tumors of the pancreas can show nontypical features such as calcification formation.
authors.affiliation: Department of Surgery, Nishinomiya Municipal Central Hospital.
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Nakano
authors.forename: Shinya
authors.initials: S
authors.lastname: Yamashita
authors.forename: Itsuro
authors.initials: I
authors.lastname: Soma
authors.forename: Nobuyasu
authors.initials: N
authors.lastname: Hayashi
authors.forename: Naozumi
authors.initials: N
authors.lastname: Higaki
authors.forename: Masakazu
authors.initials: M
authors.lastname: Murakami
authors.forename: Hirohito
authors.initials: H
authors.lastname: Hayashida
authors.forename: Kazuomi
authors.initials: K
authors.lastname: Kan
authors.forename: Takao
authors.initials: T
authors.lastname: Ichihara
authors.forename: Masato
authors.initials: M
authors.lastname: Sakon
authors.forename: Masahiro
authors.initials: M
authors.lastname: Ayata
mesh_terms: D007516:Adenoma, Islet Cell / Q000473:pathology*; D002114:Calcinosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000473:pathology*