title: Tc-99m HIDA scintigraphy in segmental biliary obstruction.
abstract: Segmental biliary obstruction as a result of primary or secondary hepatic malignancy has been reported with increasing frequency. For two representative patients, the clinical and Tc-99m HIDA scintigraphic findings in segmental biliary obstruction are described. The presence of photon-deficient dilated bile ducts in one segment of the biliary tree is highly suggestive of localized biliary obstruction and should be considered in the patient with suspected or proven hepatic malignancy despite the absence of jaundice.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D001650:Bile Duct Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000556:secondary / Q000601:surgery; D002780:Cholestasis, Intrahepatic / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery; D005260:Female; D006801:Humans; D007098:Imino Acids; D008107:Liver Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D008113:Liver Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging / Q000379:methods*; D013667:Technetium; D019780:Technetium Tc 99m Lidofenin
chemical_list: D007098:Imino Acids; D019780:Technetium Tc 99m Lidofenin; D013667:Technetium