US and MRI Findings of Penile Metastasis from Rectal Adenocarcinoma: A Case Report

Metastatic tumors of the penis originating from the gastrointestinal tract are rare clinical conditions. We experienced a case of penile metastasis in a 59-year-old man who underwent an abdomino-peritoneal resection for a moderately-differentiated adenocarcinoma of the rectum 4 years earlier. We report penile ultrasonography and magnetic resonance imaging findings on this uncommon metastatic penile tumor from a rectal adenocarcinoma and briefly review radiologic findings and relevant literature.