title: [The crescent sign in childhood urography].
abstract: The crescent sign is a rare roentgenological symptom in excretory urography of infantile hydronephrosis. The orign is a presence of contrast material in the collecting renal tubule of the atrophic renal parenchyma. That is displaced at the renal circumference. The disappearance of the crescent sign represents the prognostic for the reparative potence of the renal parenchyma after the therapy of the obstructive uropathy in two own case.
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D007669:Kidney Calculi / Q000000981:diagnostic imaging* / Q000601:surgery; D007684:Kidney Tubules / Q000000981:diagnostic imaging*; D007685:Kidney Tubules, Collecting / Q000000981:diagnostic imaging*; D008297:Male; D011379:Prognosis; D014567:Urography
vernacular_title: Das crescent sign im kindlichen Urogramm.