Malignant melanoma in a burn scar.

Cancers of various sorts are occasionally encountered in burn scars. These lesions are usually squamous cell carcinomas, and the burn scars are usually old. Very rarely, malignant melanoma is encountered. An 87-year-old nursing home patient who had been burned by a lightening strike at age 16 was evaluated. She had sustained a wound covering 2% or 3% of her body surface involving her neck and the upper portion of her anterior trunk that had required several grafts. A lesion was noted over the suprasternal notch approximately 3 months before admission. The biopsy was reported as malignant melanoma. She was subsequently treated by wide reexcision with an associated Z-plasty for neck release. Because of the patient's age and the presence of four areas of regional lymph nodes nearby into which metastasis might spread, no lymph node dissections were carried out. The specimen from the reexcision was reported as squamous cell carcinoma in situ, melanoma in situ, and multinucleated giant cell reaction, acute and chronic infiltrates. The wound margins were clear.