[Metastatic tumor of renal pelvis and ureter from prostatic cancer: a case report].

An 86-year-old man was admitted to our hospital with a complaint of gross hematuria. Urological examination revealed right hydronephrosis and poorly differentiated adenocarcinoma of the prostate with bone metastases. Abdominal computed tomographic scan and retrograde pyelography showed thickening of the ureteral wall with irregular stenosis in the right upper ureter. Right nephroureterectomy demonstrated diffuse lymphatic infiltration of PSA-positive cancer cells in the submucosa and muscle layer of the ureter as well as renal pelvis. This is the 6th reported case of metastatic ureteral tumor from prostate cancer in the Japanese literature.