title: Radiographic appearance of the nonabsorbed (unconjugated) and conjugated sodium tyropanoate (Bilopaque) in the bowel.
abstract: A series of abdominal radiographs were taken in eight normal volunteers after the ingestion of sodium tyropanoate (Bilopaque). These showed nonabsorbed sodium tyropanoate to have a granular appearance, while the conjugated form had a smooth homogeneous appearance. The appearance of conjugated sodium tyropanoate in the bowel has the same diagnostic significance as conjugated iopanoic acid in the presence of a nonvisualized gallbladder. It indicates that the contrast material has passed through the hepatic ductal system and that there has been an opportunity for the gallbladder to opacify.
mesh_terms: D000328:Adult; D002765:Cholecystography; D006801:Humans; D007408:Intestinal Absorption; D007462:Iodobenzenes / Q000378:metabolism*; D008297:Male; D014441:Tyropanoate / Q000378:metabolism*
chemical_list: D007462:Iodobenzenes; D014441:Tyropanoate