title: Mass-forming pancreatitis with positive fluoro-2-deoxy-D: -glucose positron emission tomography and positive diffusion-weighted imaging-magnetic resonance imaging: Report of a case.
abstract: It is difficult to make an accurate radiological diagnosis of a pancreatic tumor because of its location and anatomical characteristics. Mass-forming pancreatitis and pancreatic cancer are particularly difficult to differentiate. New diagnostic technology, which includes diffusion-weighted imaging-magnetic resonance imaging (DWI-MRI) and 2-[(18)F]-fluoro-2-deoxy-Dglucose positron emission tomography (FDG-PET), offers hope for the detection of classical pancreatic cancer. Few studies have been conducted on FDG-PET and DWI-MRI as tools used to distinguish between mass-forming pancreatitis and pancreatic cancers. Furthermore, positive findings of mass-forming pancreatitis on DWI-MRI and FDG-PET have yet to be documented. We report a case of a pancreatic head tumor, present on FDG-PET and DWI-MRI which, on closer examination, revealed benign mass-forming pancreatitis. We discuss the utility of FDG-PET and DWI-MRI as preoperative diagnostic tools.
authors.affiliation: Department of Surgery, Institute of Health Biosciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Nishi
authors.forename: Toru
authors.initials: T
authors.lastname: Ikegami
authors.forename: Satoru
authors.initials: S
authors.lastname: Imura
authors.forename: Yuji
authors.initials: Y
authors.lastname: Morine
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Kanemura
authors.forename: Hiroki
authors.initials: H
authors.lastname: Mori
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Arakawa
authors.forename: Jun
authors.initials: J
authors.lastname: Hanaoka
authors.forename: Koji
authors.initials: K
authors.lastname: Sugimoto
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Shimada
mesh_terms: D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D016577:Pancreaticoduodenectomy; D010195:Pancreatitis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18