A case of chondrodermatitis nodularis chronica helicis

Abstract

A 69-year-old woman noticed a painful red nodule on the bottom of her right helicis. After 8 months, a bean-sized red nodule with crust in her right helicis became apparent. Surgical resection was performed 3 times for the same lesion. Pathological findings of the specimen were non-specific. The lesion quickly relapsed. Finally, histopathological examination from the 4 th resection showed vascularized granulation and fibrinoid degeneration of collagen with inflammatory cell infiltration. We made the diagnosis of chondrodermatitis nodularis chronica helices. She slept on her right side, which might have caused prolonged and excessive pressure on the affected side. We here provide information on the treatment of chondrodermatitis chronica nodularis helicis from previous reports.