Colon cancer presenting as a testicular metastasis.

We report a case of a 43-year-old male who initially presented with intermittent testicular pain as the first sign of metastatic stage IV colon cancer. Physical examination revealed a normal penis, scrotum and testes. Magnetic resonance imaging (MRI) of pelvis showed an irregular 3 cm mass of the spermatic cord and right radical inguinal orchiectomy was performed. The pathological diagnosis was metastatic adenocarcinoma. In conclusion, even though metastases to the testes are rare, they should be considered in clinical practice especially in older men who present with a testicular mass or discomfort.