REPORT OF A CASE
A 27-year-old well-nourished, anxious woman presented with a 6-year history of hair loss. She reported no significant medical problems and took no medications or extra vitamins. She had normal and regular menstrual periods. She described her mother and aunt as having thinning hair and her father as having male pattern baldness.The physical examination revealed a large irregular area of alopecia on the vertex and crown of her head (Figure 1 and Figure 2) with some residual hairs up to about 1 cm in length. There was no evidence of skin scaling, erythema, atrophy, or crusting on the scalp. Normal hair completely surrounded this alopecia. Eyebrows and eyelashes were normal. The skin on the rest of her body and inner fingernails was unremarkable. A biopsy specimen was obtained. Histologic findings are shown in Figure 3 and Figure 4.What is your diagnosis?
Clark J, Helm TN, Bergfeld WF. Chronic Alopecia. Arch Dermatol. 1995;131(6):723-724. doi:10.1001/archderm.1995.01690180099019