<unk>  is a small, nodular, tender,<unk> inflammatory lesion occurring on the helix of the ear, most often in men. File:Histopathology of<unk> .Histopathology, showing an ulceration surrounded by acanthosis and parakeratosis, with absence of atypia.
Chondrodermatitis nodularis chronica helicis
Granulosis rubra nasi
Ichthyosis bullosa of Siemens
Photoleukomelanodermatitis of Kobori
Dermatitis repens
Steroid rosacea
Dermatitis herpetiformis
Shiitake mushroom dermatitis