Lichen planopilaris
Encyclopedia
Lichen planopilaris is a form of hair loss which involves scarring, a follicular form of lichen planus
, and is considered to have an autoimmune cause. Lichen planopilaris is a distinct form of cicatricial alopecia, a group of rare disorders which destroy the hair follicle, replace it with scar tissue, and cause permanent hair loss.
Lichen planus
Lichen planus is a chronic mucocutaneous disease that affects the skin, tongue, and oral mucosa. The disease presents itself in the form of papules, lesions, or rashes. Lichen planus does not involve lichens, the fungus/algae symbionts that often grow on tree trunks; the name refers to the dry and...
, and is considered to have an autoimmune cause. Lichen planopilaris is a distinct form of cicatricial alopecia, a group of rare disorders which destroy the hair follicle, replace it with scar tissue, and cause permanent hair loss.