Chondrodermatitis nodularis helicis in Adult
Patients preferentially sleep on the side of affected ear and cannot avoid doing so. Phone usage on the affected side is common. Repeated trauma, pressure, and subsequent ischemic necrosis of the affected cartilage and overlying dermis are thought to promote this condition. Cold, radiation therapy, and actinic damage may be exacerbating factors.
It is more common in middle-aged to elderly men with light skin phototypes. In men, the lesion favors the helix, whereas in women, the antihelix is more commonly affected. The condition can rarely occur in children. There have been no reports of malignant degeneration.
H61.199 – Noninfective disorders of pinna, unspecified ear
76583009 – Chondrodermatitis nodularis helicis
- Squamous cell carcinoma
- Actinic keratosis
- Basal cell carcinoma
- Amelanotic melanoma
- Neurotic excoriation
- Foreign body reaction
- Cutaneous horn
- Calcinosis cutis
- Weathering nodules of the ears – can develop in patients with chronic actinic damage; lacks inflammation and ulceration