title: Contracted gallbladder: a cause of false-positive hepatobiliary scan in patients with cystic fibrosis.
abstract: Gallbladder nonvisualization on hepatobiliary scintigraphy in cystic fibrosis is generally secondary to cystic duct obstruction from inspissated bile, mucus, or gallstones. We report gallbladder nonvisualization on hepatobiliary imaging in two patients with cystic fibrosis who had contracted gallbladders on ultrasonography. Repeat ultrasonography at 6 months revealed persistent gallbladder contraction. A contracted gallbladder therefore is a potential cause of a false-positive hepatobiliary scan which can be treated with conservative management.
authors.affiliation: Department of Diagnostic Radiology, Hahnemann University Hospital, Philadelphia, Pennsylvania 19102, USA.
authors.forename: V
authors.initials: V
authors.lastname: Giuliano
authors.forename: S
authors.initials: S
authors.lastname: Dadparvar
authors.forename: R
authors.initials: R
authors.lastname: Savit
authors.forename: D
authors.initials: D
authors.lastname: Holsclaw
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000328:Adult; D001659:Biliary Tract / Q000000981:diagnostic imaging*; D002648:Child; D003550:Cystic Fibrosis / Q000150:complications / Q000000981:diagnostic imaging*; D005189:False Positive Reactions; D005260:Female; D005704:Gallbladder / Q000000981:diagnostic imaging*; D005705:Gallbladder Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D007098:Imino Acids; D008099:Liver / Q000000981:diagnostic imaging*; D008297:Male; D015609:Organotechnetium Compounds; D011877:Radionuclide Imaging; D019785:Technetium Tc 99m Disofenin; D014463:Ultrasonography
chemical_list: D007098:Imino Acids; D015609:Organotechnetium Compounds; D019785:Technetium Tc 99m Disofenin