Pediatric Melanoma Arising in a Background of Melanocytic Nevi

Malignant melanoma is an aggressive neoplasm primarily involving the skin. They may arise de novo or from a premalignant melanocytic lesion. Melanomas are primarily known to occur in adults. Pediatric melanomas (PM) are rare and predominantly occur de novo following ultraviolet deoxyribonucleic acid (DNA) damage. They may also be associated with the presence of congenital melanocytic nevi. We report a rare case of a 6-year-old child with multiple melanocytic nevi subsequently diagnosed with melanoma of the back and metastatic disease.