Disseminated melanoma with unique unilateral distribution.

This is a case report of extensive metastases of dermal and subcutaneous malignant melanomas limited to the right side of the body, with the left side remaining singularly free of any evidence of tumor. The primary melanoma, which had been excised 7 years before the development of metastases, existed on the posterior aspect of the chest, slightly to the right of the midline. This is the only case of its kind noted.