Affiliation:
1. Department of Dermatology Tohoku University Graduate School of Medicine Sendai Japan
2. Department of Dermatology Sendai Tokushukai Hospital Sendai Japan
Abstract
AbstractCutaneous squamous cell carcinoma (cSCC) arising from radiation dermatitis has a higher risk of metastasis than conventional cSCC. Immunosuppression is another risk factor for cSCC, suggesting that mycosis fungoides (MF) could be a risk factor for cSCC. Here we report a case of radiation‐induced cSCC with a high level of tumor‐mutation burden that developed in a patient with MF who was successfully treated with pembrolizumab. The present case suggests that pembrolizumab might be an optimal therapy for radiation‐induced cSCC, even at advanced stages.