title: An unusual cause of double duct sign. Type I sphincter of Oddi dysfunction due to chronic opium addiction.
authors.affiliation: Department of Gastroenterology, Jaswant Rai Specialty Hospital, Meerut, UP, India.
authors.forename: Malay
authors.initials: M
authors.lastname: Sharma
authors.forename: Balakrishnan
authors.initials: B
authors.lastname: Mahadevan
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000368:Aged; D002760:Cholangiopancreatography, Endoscopic Retrograde; D019160:Endosonography; D006801:Humans; D006984:Hypertrophy; D008297:Male; D009293:Opioid-Related Disorders / Q000150:complications*; D009892:Opium; D009803:Sphincter of Oddi / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D046628:Sphincter of Oddi Dysfunction / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D016717:Sphincterotomy, Endoscopic
chemical_list: D009892:Opium