- Human pathology

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Wednesday 16 June 2004

ETIOLOGY: abnormal compulsion to pull out hail

HISTOPATHOLOGY: marker increase in catagen and telogen hairs, possible follicular damage, pigmented casts, possible trichomalacia, and inflammatory changes usually absent

OTHER CAUSES OF PATCHY ALOPECIA: alopecia areata, tinea capitis, loose anagen syndrome, traction and pressure alopecia, secondary syphilis, tick bite alopecia, aplasia cutis, congenital triangular alopecia, familial focal alopecia, pseudopelade