title: Now you see it, now you don't: an unusual cause of the "double duct sign".
authors.affiliation: Section of Gastroenterology, Boston Medical Center, Boston, Massachusetts.
authors.forename: Richard S
authors.initials: RS
authors.lastname: Kalman
authors.affiliation: Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
authors.forename: Morgan A
authors.initials: MA
authors.lastname: Bresnick
authors.affiliation: Section of Gastroenterology, Boston Medical Center, Boston, Massachusetts.
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Huang
mesh_terms: D000369:Aged, 80 and over; D003137:Common Bile Duct Diseases / Q000175:diagnosis / Q000209:etiology*; D004378:Duodenal Diseases / Q000175:diagnosis / Q000209:etiology*; D046152:Gastrointestinal Stromal Tumors / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D007443:Intussusception / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D010182:Pancreatic Diseases / Q000175:diagnosis / Q000209:etiology*; D010183:Pancreatic Ducts; D013274:Stomach Neoplasms / Q000150:complications / Q000175:diagnosis*