differential diagnosis

Last reviewed 01/2018

Differential diagnosis includes:

• inflammatory conditions e.g. seborrhoeic dermatitis, lichen simplex, nodular prurigo, discoid lupus erythematosus
• premalignant conditions e.g. lentigo maligna, Bowen's disease
• benign conditions e.g. seborrhoeic keratosis, epidermal naevus, keratoacanthoma, chondrodermatitis nodularis helicis
• malignant conditions e.g. squamous cell carcinoma, superficial basal cell carcinoma, sebaceous carcinoma