Congenital Triangular Alopecia - A Case Report.

Congenital triangular alopecia also known as temporal triangular alopecia or Brauer nevus may be present at birth or acquired during the first decade of life. It can present as triangular, oval, or lancet-shaped patch of alopecia. It may be misdiagnosed as alopecia areata, traction alopecia, trichotillomania, tinea capitis, and aplasia cutis congenita. Histopathological features and dermoscopic features help in its diagnosis. There is no effective treatment for it and, in most cases, there is no need for therapeutic intervention. Therapeutic modalities include topical minoxidil, surgical excision, and hair transplantation.