Erythroderma and Chronic Lichenification Due to Metformin

Authors

• Javier Moreno Díaz Internal Medicine Department, University Hospital Miguel Servet, Zaragoza, Spain
• Jose Miguel García Bruñén Internal Medicine Department, University Hospital Miguel Servet, Zaragoza, Spain
• Rocío Bermúdez Cameo Pathological Anatomy Department, University Hospital Miguel Servet, Zaragoza, Spain
• Ana Martínez González Rehabilitation Department, Hospital of Barbastro, Huesca, Spain

javimorenomdr@hotmail.com

Keywords

Abstract

We present the case of a 62-year-old man with a 4-year history of pruritus and erythroderma. The patient had been taking metformin for 5 years, so after contact allergies, contact with toxic products, and autoimmune diseases were ruled out, the condition was treated as erythroderma secondary to metformin. A skin biopsy subsequently confirmed the diagnosis and lichenification of some areas of the patient's skin.