Horizontal sections showed a decreased number of terminal anagen follicles and an infiltrate of lymphocytes and eosinophils juxtaposed on remaining infundibula, as well as concentric peri-infundibular fibrosis. There was loss of sebaceous lobules.
The patient was treated with intralesional corticosteroids (triamcinolone acetonide [Kenalog]) with significant reduction of her scalp pruritus and subjective slowing of the progression of hair loss. Clinically, there was reduction in perifollicular erythema and scale; anagen hairs remained easily extractable on a hair-pull test.
Bandlike Frontal Hair Loss in a 62-Year-Old Woman—Diagnosis. Arch Dermatol. 2003;139(10):1363-1368. doi:10.1001/archderm.139.10.1363-a