title: Carcinoid tumor of the cystic duct.
abstract: A 69-year-old male was admitted to an outside institution for severe right abdominal pain radiating to the flank. An extensive work-up, including lower GI series, IVP, and ultrasound of the kidneys were normal. Ultrasound of the liver demonstrated a thickened gallbladder as well as cholelithiasis. Despite some improvement, his symptoms returned intermittently and cholecystectomy was performed. Pathologic examination of the gallbladder showed a carcinoid tumor, 5.4 mm in maximum diameter, in the cystic duct. A small metastatic focus was also found in the cystic duct lymph node. In this paper we compare the clinical presentation, pathological findings and outcome of this case to the previously reported six cases of cystic duct carcinoid. A comparison is also made between the general features of carcinoid at this rare location and the more common gastrointestinal carcinoid.
authors.affiliation: Department of Pathology, University of Wisconsin Hospital & Clinics, Madison 53792, USA.
authors.forename: M
authors.initials: M
authors.lastname: Hermina
authors.forename: J
authors.initials: J
authors.lastname: Starling
authors.forename: T F
authors.initials: TF
authors.lastname: Warner
mesh_terms: D000368:Aged; D001650:Bile Duct Neoplasms / Q000378:metabolism / Q000473:pathology*; D002276:Carcinoid Tumor / Q000378:metabolism / Q000473:pathology*; D002864:Chromogranins / Q000096:biosynthesis; D003549:Cystic Duct / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D010191:Pancreatic Polypeptide / Q000096:biosynthesis; D016708:Synaptophysin / Q000096:biosynthesis
chemical_list: D002864:Chromogranins; D016708:Synaptophysin; D010191:Pancreatic Polypeptide