Abstract
Metastasis of colon cancer to the penis is less common than metastasis to the nearby pelvic organs, such as the prostate gland, urinary bladder, or rectum. We report a case of penile metastasis from cancer of the cecum. The patient was a 75-year-old man who had undergone ileocecal resection for stage IV cancer of the cecum (Tub2, se, n1) at the age of 74. Ten months after the operation, he suffered from penile pain. A mass was noted on the shaft of the penis, which was confirmed to be metastatic cecal cancer by biopsy (immunostaining was negative for CK7 and positive for CK20). Magnetic resonance imaging (MRI) showed an enhancing tumor 2 cm in diameter in the middle of the corpus spongiosum. He received radiation therapy as well as opioids and subarachnoid block for palliative care. The patient died in the 4th month after the diagnosis of penile metastasis.
