title: Small arteriovenous malformation of the common bile duct causing hemobilia in a patient with hereditary hemorrhagic telangiectasia.
abstract: We report a 54-year-old male patient with arteriovenous malformation located at the common bile duct and hereditary hemorrhagic telangiectasia. The patient was treated as gallstone pancreatitis at first. Three days after endoscopic nasobiliary drainage (ENBD) for biliary drainage to subside gallstone pancreatitis, hemobilia was drained from the ENBD tube and the serum hemoglobin level gradually decreased. Cholangioscopy and angiography revealed that hemobilia was due to a small arteriovenous malformation located at the common bile duct. Subsequently, the patient was successfully treated by endovascular intervention.
authors.affiliation: Department of Radiology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima-shi, Kagoshima 890-8544, Japan. hayashi@m.kufm.kagoshima-u.ac.jp
authors.forename: Sadao
authors.initials: S
authors.lastname: Hayashi
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Baba
authors.forename: Kazuto
authors.initials: K
authors.lastname: Ueno
authors.forename: Masayuki
authors.initials: M
authors.lastname: Nakajo
mesh_terms: D000792:Angiography; D001165:Arteriovenous Malformations / Q000150:complications* / Q000175:diagnosis / Q000628:therapy*; D002760:Cholangiopancreatography, Endoscopic Retrograde; D049448:Cholangiopancreatography, Magnetic Resonance; D003135:Common Bile Duct / Q000098:blood supply*; D003287:Contrast Media; D003937:Diagnosis, Differential; D004322:Drainage / Q000379:methods; D004621:Embolization, Therapeutic / Q000379:methods*; D006431:Hemobilia / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000150:complications*
chemical_list: D003287:Contrast Media