title: [Renal scintigraphy under hyperdiuresis in upper urinary tract dilatations].
abstract: Emphasis is placed on the existence of two types of dilatation of the upper excretory tract: obstructive and non-obstructive lesions. Renal scintigraphy with technetium-labelled DTPA combined with a Lasilix test was performed in 34 patients (26 operated and 8 treated medically) with a total of 41 dilated renal units. Intra-operative exploration in the 17 reno-ureteral units assessed as being the site of obstruction on scintigraphy confirmed the lesion in the 14 cases of anomalies of the pyelo-ureteral junction and the 3 mega-ureters. For as long as the obstructed zone is not resected the dilated urinary tract fails to empty. In the other 12 units, the scintigraphy diagnosis of non-obstructive hypotony was confirmed by the operation and the subsequent course (notably in the 10 cases of reflux in the wide ureters reimplanted with a good result without resection of end of ureter).
mesh_terms: D002648:Child; D002675:Child, Preschool; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging / Q000209:etiology; D004231:Diuresis; D005069:Evaluation Studies as Topic; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging*; D007674:Kidney Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D008722:Methods; D011877:Radionuclide Imaging; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology
vernacular_title: La scintigraphie rénale sous-hyperdiurèse dans les dilatations du haut appareil urinaire.