Abstract
This case was a 68-year-old man with liver cirrhosis who had left ureter stone untreated for many years, Percutaneous nephrostomy was performed for hydronephrosis due to ureter stone. The blood level of CA 19-9 was markedly increased to 1957.0U/ml postoperatively, declined gradually thereafter and returned to the preoperative level after 3 months. The elevated blood level of CA 19-9 following percutaneous nephrostomy was reproducible. The level of CA 19-9 in the renal pelvic fluid obtained through the renal fistula was as high as 106350U/ml. The patient died of liver cirrhosig. Autopsy did not reveal a tumor in the renal pelvis on the affected side. CA 19-9 was detected in the epithelium of the renal pelvis.