Spontaneous rupture of renal pelvis secondary to ureteral obstruction by urothelial tumor

1Radiologist, assistant Physician, department of Radiology, Faculty of medical Sciences – State University of campinas (Fcm-Unicamp), campinas, SP, Brazil. 2Resident Physician, department of Radiology, Fcm-Unicamp, campinas, SP, Brazil. 3Radiologist, assistant Physician, department of Radiology, Fcm-Unicamp; Radiological center of campinas – Hospital Vera cruz; Pontifical catholic University of campinas (PUcc), campinas, SP, Brazil. 4Phd-Professor, department of Radiology, Fcm-Unicamp, campinas, SP, Brazil.