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Abstract

Cutaneous metastases occur in about 10% of patients with cancer, occasionally presenting as the initial sign of internal malignancy. Most often cutaneous metastases are an indicator of advanced cancer and are associated with a poor prognosis. The scrotum is a rare site of cutaneous metastasis, and metastatic tumor to the scrotum can be mistaken for other skin lesions. We reviewed the published literature regarding patients who developed cutaneous metastasis to the scrotum. We summarized the clinical characteristics of these men, including primary tumor sites, age at diagnosis, treatment regimens, interval between diagnosis of primary tumor and subsequent metastasis, and outcomes. We extensively searched the PubMed medical database for papers on visceral malignancies with metastasis to the scrotum. We limited our definition to solid organ tumors; thus lymphomas, sarcomas, and melanomas of the scrotum were excluded. We identified 29 patients who developed scrotal metastases from visceral cancers. The colon/rectum (34%), prostate (28%), and lung (14%) were the most frequent sites of tumor origin. The prognosis for these patients is poor: mean patient survival was only four months after diagnosis of metastatic skin lesions. Cutaneous metastasis to the scrotum is a rare manifestation of internal malignancies that most often represents an advanced and/or progressive cancer associated with a poor prognosis. Treatment is often unsuccessful, and the mean patient survival following scrotal metastasis is <4 months.