title: Accumulation of technetium-99m sulfur colloid by hepatocellular adenoma: scintigraphic-pathologic correlation.
abstract: It is currently believed that hepatocellular adenoma is photon deficient on technetium-99m sulfur colloid scintigraphy because these tumors lack Kupffer cells. In a retrospective review of 13 pathologically proven cases of hepatocellular adenoma with technetium-99m sulfur colloid scintigrams, Kupffer cells were present in all 13 cases. We observed uptake of the radiocolloid by the hepatocellular adenoma in three cases (23%), and there were no histologic differences between the tumors with uptake and the ones without it. We conclude that the currently accepted reason for the lack of technetium-99m sulfur colloid uptake within hepatocellular adenoma is incorrect, and an explanation other than a lack of Kupffer cells is responsible for the photon-deficient appearance in the majority of cases of hepatocellular adenoma. Further, because hepatocellular adenoma may have technetium-99m sulfur colloid uptake in a significant percentage of cases, it should be added to focal nodular hyperplasia in the differential diagnosis of a hepatic mass with uptake by technetium-99m sulfur colloid.
mesh_terms: D000293:Adolescent; D000328:Adult; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000000981:diagnostic imaging; D007728:Kupffer Cells / Q000378:metabolism / Q000473:pathology*; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D013671:Technetium Tc 99m Sulfur Colloid / Q000378:metabolism
chemical_list: D013671:Technetium Tc 99m Sulfur Colloid