title: Extrarenal abnormalities in Tc-99m-DTPA renal blood flow studies.
abstract: We observed extrarenal abnormalities during renal flow scintigraphy and retrospectively reviewed 90 patient studies to determine the types and frequencies of such abnormal findings. For each routine Tc-99m-DTPA renal flow study, we obtained nine 2-second sequential images, which included the heart, abdominal aorta, spleen and kidneys. Eighty abnormalities, observed in 62 patients, were divided into three categories: aortic, 37 cases (aneurysms, ectasia, thrombosis, tortuosity, and abruptly decreased flow); splenic, 40 cases (enlarged, small, or absent spleen); and miscellaneous, 3 cases (hepatic arterialization and very slow circulation). Other correlative studies including Tc-99m sulfur colloid-spleen scintigraphy, ultrasonography (US), CT, aortography, and surgical and/or autopsy findings were available for corroboration in 56 of 80 lesions.
mesh_terms: D000328:Adult; D000368:Aged; D001012:Aorta, Abdominal; D001018:Aortic Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D004369:Pentetic Acid; D011866:Radioisotope Renography; D012079:Renal Circulation; D013154:Spleen / Q000002:abnormalities; D013163:Splenomegaly / Q000000981:diagnostic imaging*; D013667:Technetium; D016284:Technetium Tc 99m Pentetate
chemical_list: D013667:Technetium; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate