title: The appearance of a large mesenteric varix on a technetium-99m red blood cell gastrointestinal bleeding study.
abstract: Detection of gastrointestinal bleeding using Tc-99m labeled RBCs has proven to be clinically useful although false-positive images associated with abnormal vascularity remain problematic. The scintigraphic appearance of a large mesenteric varix is presented, and its potential confusion with gastrointestinal bleeding is discussed. Correlative CT and angiographic images are presented.
mesh_terms: D000792:Angiography; D003937:Diagnosis, Differential; D004912:Erythrocytes; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008642:Mesenteric Veins / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011877:Radionuclide Imaging; D013667:Technetium; D014057:Tomography, X-Ray Computed; D014648:Varicose Veins / Q000000981:diagnostic imaging*
chemical_list: D013667:Technetium