title: Unusual cause of nonopacification of the gallbladder during oral cholecystography.
mesh_terms: D000284:Administration, Oral; D000368:Aged; D002765:Cholecystography / Q000379:methods*; D004938:Esophageal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D004940:Esophageal Stenosis / Q000150:complications* / Q000209:etiology; D005260:Female; D006801:Humans; D007480:Iopanoic Acid / Q000008:administration & dosage*; D013607:Tablets
chemical_list: D013607:Tablets; D007480:Iopanoic Acid