Figure 1.
Key clinical and histological features of selected PCA entities (adapted from Harries et al1). LPP, lichen planopilaris; CCLE, chronic cutaneous lupus erythematosus; FD, folliculitis decalvans; DCS, dissecting cellulitis of the scalp (syn. Perifolliculitis abcedens et suffodiens); AKN, acne keloidalis nuchae; Ig, immunoglobulin; IMF, immunofluorescence; BM, basement membrane).