Abstract
We report a case of small–intestine metastasis from renal pelvic carcinoma. A 63–year–old man who had had left renal pelvic cancer had undergone nephroureterectomy and adjuvant chemotherapy. Four years later, renal pelvic cancer was found to have metastasized to the left adrenal gland and paraaortic lymph node. The disease remained stable and 1 year of chemotherapy was successful. Five years postoperatively, he was admitted with bowel obstruction due to small–intestine nerrowing. Biopsy showed poorly differentiated adenocarcinoma diagnosed as primary small–intestine carcinoma and necessitating radical resection. Histolopathologically, resected small–intestine specimens showed the same renal pelvic cancer as before, l.e., poorly differentiated carcinoma, confirmed by Immunostaining. The final diagnosis was thus small–intestine metastasis from renal pelvic carcinoma.
