Penile Metastasis Secondary to Supraglottic Squamous Cell Carcinoma: Review of the Literature

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Abstract
We report an unusual supraglottic carcinoma metastasis to the penis. Review of the literature revealed more than 300 cases of metastatic lesions to the penis, excluding primary neoplasms from skin, urethra and blood. Of these metastatic neoplasms 16 originated above the diaphragm, only 4 of which were from the head and neck region. The most common neoplastic metastases to the penis in order of frequency were from the bladder, prostate, rectum and rectosigmoid areas, and kidney in 32, 30, 13 and 8% of the cases, respectively. The incidence of other primary tumor sites that metastasize to the penis is extremely rare.