title: Gluteal hematoma. A potential cause for a false-positive Tc-99m RBC gastrointestinal bleeding study.
mesh_terms: D002081:Buttocks / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004912:Erythrocytes; D005189:False Positive Reactions; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006406:Hematoma / Q000000981:diagnostic imaging*; D006801:Humans; D008875:Middle Aged; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium