[A case report of spontaneous renal rupture due to arteriosclerosis]

A case of spontaneous renal rupture with subcapsular hematoma was reported. The patient was a 44-year old man complaining of a sudden left flank pain without any recent history of trauma. His abdominal ultrasonography (US), computerized tomography (CT) and renal angiography demonstrated left renal rupture with subcapsular renal hematoma. Cytological examination of left upper urinary tract revealed a suspicion of a neoplasma of renal pelvis and left renal function was not recovered. Therefore, left total nephro-uretectomy was performed, and histological examination revealed hemorrhage and infarct due to the severe arteriosclerosis and intestinal nephritis without malignancy. Sixty-three cases of non-traumatic subcapsular renal hematoma reported previously in the Japanese literature are reviewed with some statistical analyses.