title: "Railroad ties" noted on radiocolloid anterior hepatic dynamic study.
mesh_terms: D000368:Aged; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging*; D008297:Male; D011877:Radionuclide Imaging; D013455:Sulfur; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
chemical_list: D013671:Technetium Tc 99m Sulfur Colloid; D013455:Sulfur; D013667:Technetium