title: Extravasation in ureteral tumours.
abstract: Extravasation of contrast medium following retrograde pyelography may occur when excessive pressure is used during injection of the contrast medium, direct trauma during manipulation of the ureteral catheter or pre-existing ureteral disease. Extravasation of contrast medium occurring in a ureteral tumour is rare. A case where extravasation of contrast medium was observed during retrograde pyelography due to extensive invasion of the ureter by a primary ureteral tumour is reported.
mesh_terms: D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D009361:Neoplasm Invasiveness; D011859:Radiography; D014513:Ureter / Q000293:injuries; D014516:Ureteral Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology