[Spontaneous rupture of the renal pelvis: a case report]

A 63-year-old man who had undergone gastric resection for gastric carcinoma in June 1981, had a dull pain in the right flank and nausea on June 2, 1982. Excretory urograms showed spontaneous rupture of the right pelvis. Metastasis or invasion of the gastric carcinoma to the right ureter was suspected. On June 9, 1982, percutaneous nephrostomy guided by ultrasound was performed. After the nephrostomy, antegrade pyelogram revealed no extravasation of the contrast medium.