Rectal cancer associated with penile metastasis A case report.

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A Case of the Rectal Cancer Associated with Penile Metastasis Was Reported<BR>A forty-eight years old male, was readmitted because of liver metastasis and intrapelvic tumor one year after the Miles' operation. On the previous laparotomy, the cancer was found at the lower part of the rectum (Rb). Macroscopically it was the ulcerative type and histologically well differentiated and mucinous adenocarcinoma. He was treated with radiation and intra-arterial infusion of MMC 10 mg for the liver and the intra-pelvic metastasis during second admission. As penile metastasis and priapism were found later, the penile metastasis was treated with LASER, which was ineffective. He died one year and nine months after the operation.<BR>This is the third case in Japan as a rectal cancer metastasized to the penis. Though the penis is an organ with rich bloodstream, penile metastasis is rare. We suspected the patient's penile metastasis would be occurred by retrograde venous transport and by the route spread by tertiary embolism.<BR>There is little treatment for penile metastasis because it is the last phenomenon of the systemic metastasis. To prevent the retrograde venous and lymphatic transport, it would be important to resect the lymphnodes along the middle rectal artery as much as possible.
日本大腸肛門病学会の論文