title: Abdominal scanning using autologous human red blood cells labeled with Tc-99m: detection of a horseshoe kidney.
abstract: A horseshoe kidney was incidentally diagnosed while performing an abdominal scan using autologous human red blood cells labeled with Tc-99m (Tc-99m RBC) on a patient with suspected gastrointestinal bleeding. This patient repeatedly tested positive on occult blood stool examinations. In the first scintigram, an increase in well-defined activity was found on the right side under the liver. This could have been caused either by bleeding of the gastric antrum or the duodenal bulb. A second abdominal scan with Tc-99m RBC revealed faint radionuclide accumulation in the shape of a horseshoe with symmetrical, well-defined activity. However, the well-defined activity decreased with time on both images, and on this basis a horseshoe kidney was diagnosed.
authors.affiliation: Department of Radiology, Kurume University School of Medicine, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Morita
authors.forename: M
authors.initials: M
authors.lastname: Ishibashi
authors.forename: T
authors.initials: T
authors.lastname: Hirayama
authors.forename: T
authors.initials: T
authors.lastname: Kumabe
authors.forename: J
authors.initials: J
authors.lastname: Komura
authors.forename: H
authors.initials: H
authors.lastname: Yano
authors.forename: H
authors.initials: H
authors.lastname: Ohtake
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging*; D002675:Child, Preschool; D004912:Erythrocytes / Q000378:metabolism*; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D011877:Radionuclide Imaging; D013667:Technetium / Q000008:administration & dosage
chemical_list: D013667:Technetium