Dermnet Videos
Alopecia Videos
- Alopecia areata – Causes and Associated Conditions
- Alopecia Areata Information
- Alopecia Areata Treatment
- Course of Sudden Hair Loss Telogen Effluvium
- Evaluation and Treatment of Sudden Hairloss Telogen Effluvium
- Female Pattern Baldness and Hair Loss Causes
- Female Pattern Baldness and Hair Loss in Women
- Female Pattern Hair Loss Evaluation and Testing
- Female Pattern Hair Loss Treatment
- Hair loss and Alopecia Introduction
- Hair Loss Due To Hair Pulling – Trichotillomania
- Hair Loss Treatment and Male Pattern Baldness Medicine
- Loose Anagen Hair Syndrome
- Male Patern Baldness Causes and Hair Loss
- Male Pattern Baldness and Hair Loss Information
- Sudden Hair Loss Telogen Effluvium
- Traction Alopecia Hair Loss
- Traction Alopecia Hair Loss Treatment
- Central Centrifugal Cicatricial Alopecia
- Discoid Lupus Erythematosus – Clinical
- Discoid Lupus Erythematosus – Histology
- Discoid Lupus Erythematosus – Treatment
- Follicular Degeneration Syndrome
- Folliculitis Decalvans – Clinical
- Folliculitis Decalvans Treatment
- Hair Loss Alopecia With Scarring Information
- Lichen Planopilaris
- Lichen Planopilaris – Clinical Features
- Lichen Planopilaris Treatment
Video Topics
Lichen Planopilaris
Lichen planopilaris (LPP) is a primary lymphocyte-mediated scarring alopecia of unknown etiology. In this condition, lymphocytes attack the epithelium of the infundibula and isthmus areas of hair follicles and sometimes the interfollicular epidermis. The histologic changes are identical to those seen in lichen planus, that is, interface changes consisting of bandlike lymphocytic inflammation with necrotic keratinocytes. With time there is perifollicular fibrosis and decreasing inflammation. Sebaceous glands are destroyed. Ultimately hair follicles are also destroyed. The follicular antigen(s) targeted by these lymphocytes are not known.