title: [Pyonephrosis: a symptom manifesting a ureteral tumor. Apropos of 4 case reports].
abstract: The author reports four cases of unilateral pyonephrosis revealing ureteral tumors. None of the patients presented with a case history of hematuria. Retrograde ureteropyelography, using Chevassu's method, was suggestive of a ureteral tumor which was in fact discovered at operation. Frozen sections identified the type of tumor involved: a urothelial carcinoma.
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D011704:Pyelonephritis / Q000209:etiology*; D011859:Radiography; D014516:Ureteral Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery
vernacular_title: La pyonéphrose: symptôme révélateur d'une tumeur de l'uretère. A propos de quatre observations.