Chondrodermatitis nodularis occurs more frequently in fair-skinned and middle-aged older males, with 10–35% of the cases reported in women. It is rarely reported in children.… See more

The exact cause … See more

Chondrodermatitis nodularis is a solitary, firm, and oval-shaped nodule, 4–6 mm in diameter, with central crust and surrounding erythema. 1. In men, the most common sit… See more

In most cases, the diagnosis of chondrodermatitis nodularis is made clinically, based on the characteristic location on the helix or antihelix, and a typical hist… See more

The differential diagnosis for CNH depends on the clinical findings. Other diagnoses to consider include: 1. Squamous cell carcinoma 2. Keratoacanthoma 3. Viral wart 4. Gou… See more