Chondrodermatitis Nodularis Chronica Helicis
Chondrodermatitis nodularis chronica helicis is a small, nodular, tender, chronic inflammatory lesion occurring on the helix of the ear, most often in men.:610

Histopathology, showing an ulceration surrounded by acanthosis and parakeratosis, with absence of atypia.
See also
- List of cutaneous conditions