title: Scintigraphic demonstration of acute gastrointestinal bleeding caused by gallbladder carcinoma eroding the colon.
abstract: Massive lower gastrointestinal (GI) bleeding caused by gallbladder carcinoma eroding into the colonic wall was demonstrated accurately by Tc-99m RBCs. In addition, retrograde bleeding into the gallbladder was also identified while arteriography did not show contrast extravasation. This case supports the use of Tc-99m RBCs over Tc-99m sulfur colloid for more accurate localization of lower GI bleeding.
mesh_terms: D000208:Acute Disease; D000368:Aged; D001658:Biliary Fistula / Q000209:etiology; D003108:Colonic Diseases / Q000209:etiology; D004912:Erythrocytes; D005260:Female; D005705:Gallbladder Diseases / Q000209:etiology; D005706:Gallbladder Neoplasms / Q000150:complications*; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D007412:Intestinal Fistula / Q000209:etiology; D011877:Radionuclide Imaging; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
chemical_list: D013671:Technetium Tc 99m Sulfur Colloid; D013667:Technetium