Lichen Planus - Classification

Classification

Lichen planus may be divided into the following types:

• Configuration

• Annular lichen planus
• Linear lichen planus

• Morphology of lesion

• Hypertrophic lichen planus
• Atrophic lichen planus
• Vesiculobullous lichen planus
• Ulcerative lichen planus
• Follicular lichen planus
• Actinic lichen planus
• Lichen planus pigmentosus

• Site of involvement

• Lichen planus of the palms and soles (Palmoplantar lichen planus)
• Mucosal lichen planus
• Lichen planus of the nails
• Lichen planus of the scalp ( leading to cicatricial alopecia)
• Inverse lichen planus

• Special forms

• Drug-induced lichen planus
• Lupus erythematosus-lichen planus overlap syndrome
• Lichen planus pemphigoides
• Keratosis lichenoides chronica
• Lichenoid reaction of graft-versus-host disease
• Lichenoid keratosis
• Lichenoid dermatitis