title: False-positive liver scan caused by anomalous quadrate lobe and right portal branch.
abstract: A case of early cirrhosis exhibiting a discrete scan defect along the inferomedial margin of the liver near the hilum is described. Peritoneoscopy and percutaneous transhepatic portography disclosed that the quadrate lobe had a tongue like protrusion increasing activity below the hilum on the scan and a dilated right portal branch which divided near the superior mesenteric vein entered the liver at the porta hepatis.
mesh_terms: D000328:Adult; D005189:False Positive Reactions; D006801:Humans; D008099:Liver / Q000002:abnormalities*; D008107:Liver Diseases / Q000175:diagnosis*; D008113:Liver Neoplasms / Q000175:diagnosis; D008297:Male; D011169:Portal Vein / Q000002:abnormalities*; D011877:Radionuclide Imaging