title: The role of renal scintigraphy in the diagnosis and follow-up of unilateral ATN after complete bilateral distal ureteral obstruction as a complication of acute appendicitis.
abstract: Acute anuria due to bilateral distal ureteral obstruction developed in two boys, ages 7 and 13, several days after appendectomy, without sonographic signs of hydronephrosis or hydroureters. Decompression was achieved after introduction of ureteric stents. This failed on the left side in one patient, and unilateral acute tubular necrosis (ATN) subsequently developed on that side. Although bilateral decompression was successful in the second patient, ATN had already developed on the left side. In both patients, Tc-99m MAG3 renal scintigraphy proved to be an important tool in diagnosing unilateral ATN and for evaluating the recovery from this rare complication.
authors.affiliation: Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, The Netherlands.
authors.forename: M M
authors.initials: MM
authors.lastname: Tiel-van Buul
authors.forename: D C
authors.initials: DC
authors.lastname: Aronson
authors.forename: J W
authors.initials: JW
authors.lastname: Groothoff
authors.forename: R
authors.initials: R
authors.lastname: Van Baren
authors.forename: J
authors.initials: J
authors.lastname: Frenkel
authors.forename: E A
authors.initials: EA
authors.lastname: Van Royen
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D001002:Anuria / Q000209:etiology; D001062:Appendectomy; D001064:Appendicitis / Q000150:complications*; D002648:Child; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging*; D007683:Kidney Tubular Necrosis, Acute / Q000000981:diagnostic imaging* / Q000209:etiology; D008297:Male; D011183:Postoperative Complications; D011866:Radioisotope Renography; D019275:Radiopharmaceuticals; D017263:Technetium Tc 99m Mertiatide; D014517:Ureteral Obstruction / Q000150:complications*
chemical_list: D019275:Radiopharmaceuticals; D017263:Technetium Tc 99m Mertiatide