authors.affiliation: 1 Institut für Sonographie, Uster.
authors.forename: Jan
authors.initials: J
authors.lastname: Tuma
authors.affiliation: 2 Spital Limmattal, Urologische Klinik, Schlieren.
authors.forename: Hartmut
authors.initials: H
authors.lastname: Knönagel
mesh_terms: D000369:Aged, 80 and over; D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D021501:Flank Pain / Q000000981:diagnostic imaging* / Q000209:etiology*; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014516:Ureteral Neoplasms / Q000000981:diagnostic imaging*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging*