Clinical manifestation

Asymptomatic or slightly pruritic, white, polygonal papules coalescing into shiny plaques, often with follicular prominence and occasional isomophic response (Koeb-ner phenomenon); vulvar variant (krauro-sis vulvae): often intense pruritus; gradual obliteration of the labia minora and stenosis of the introitus; occasional vesicles or hemorrhagic bullae; hourglass, butterfly pattern involving perivaginal and perianal

Lichen simplex chronicus 351

areas; male genital variant (balanitis xerot-ica obliterans): usually confined to glans penis and prepuce or foreskin remnants; sometimes causes phimosis after extensive sclerosis of prepuce

Lichen scrofulosorum

► Cutaneous tuberculosis

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