Methotrexate-Induced Epidermal Necrosis

Abstract

A 79-year-old woman with psoriasis presented to the emergency department with new-onset eruptions on the trunk, extremities, and oral mucosa for 8-9 days. For psoriasis, she had been taking 15 mg of methotrexate weekly for over 18 years, and had discontinued folic acid a few months prior to this.