title: Prepancreatic postduodenal portal vein: a new hypothesis for the development of the portal venous system.
abstract: The prepancreatic postduodenal portal vein (PPPV) is an unusual anomaly, having been reported in only 11 cases including ours. Although its incidence is rare, this anomaly can cause intraoperative complications such as hemorrhage from the abnormal vein. Radiologists therefore need to be aware of this anomaly and, when identifi ed, report it to surgeons before surgery. Here we report two cases of PPPV and present a new hypothesis for development of the portal venous system.
authors.affiliation: Department of Radiology, The University of Tokyo, Tokyo, Japan. tomizawa-tky@umin.ac.jp
authors.forename: Nobuo
authors.initials: N
authors.lastname: Tomizawa
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Akai
authors.forename: Masaaki
authors.initials: M
authors.lastname: Akahane
authors.forename: Kenji
authors.initials: K
authors.lastname: Ino
authors.forename: Shigeru
authors.initials: S
authors.lastname: Kiryu
authors.forename: Kuni
authors.initials: K
authors.lastname: Ohtomo
mesh_terms: D000368:Aged; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging*; D003287:Contrast Media; D003937:Diagnosis, Differential; D004386:Duodenum / Q000098:blood supply / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D017538:Mesenteric Artery, Superior / Q000000981:diagnostic imaging; D010179:Pancreas / Q000098:blood supply* / Q000000981:diagnostic imaging; D011169:Portal Vein / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D011856:Radiographic Image Enhancement; D013162:Splenic Vein / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media