Primary Cicatricial Alopecia

North American Hair Research Societyv(NAHRS) Classification System 2001
1. Lymphocytic

• Chronic cutaneous lupus erythematosus
• Lichen planopilaris (LLP)
  
• Classic LLP
• Graham-Little syndrome
• Frontal fibrosing alopecia

• Pseudopelade of Brocq
• Central centrifugal cicatricial alopecia
• Alopecia mucinosa
• Keratosis follicularis spinulosa decalvans

2. Neutrophilic

• Folliculitis decalvans
• Dissecting cellulitis
  

3. Mixed

• Acne keloidalis
• Acne necrotica
• Erosive pustular dermatosis
  

4. Nonspecific/ end stage cicatricial alopecia