Merkel cell carcinoma arising from postoperative scar: An unusual presentation

Abstract

Merkel cell carcinoma (MCC) is an aggressive and uncommon primary cutaneous neuroendocrine cancer. With unknown pathogenesis, immunosuppression, ultraviolet radiation, Merkel cell polyomavirus, and arsenic exposure are the risk factors. Reported here is a rare case of MCC developing on a scar tissue.

Keywords

• cancer
• merkel cell carcinoma
• scar