Which of the following conditions causes alopecia without scarring -: (A) DLE, (B) Herpes Zoster, (C) Alopecia areata, (D) Lichen planus pilaris
Answer is C. Causes of cicatricial alopecia: -Discoid lupus erythematosus and morphea - developmental /hereditary : aplasia cutis -traumatic, post radiation -herpes zoster,inflammatory tinea capitis and bacterial infections -lichen planopilaris - neoplastic disorders Ref Harrison20th edition pg 1236