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Reference.org
Triangular alopecia
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<p>Triangular alopecia is hair loss that may be congenital but usually appears in childhood as a focal patch of loss that may be complete or leaving fine <a href="/facts/Vellus_hair/mDVIGrdy">vellus hairs</a> behind.: 643 Affected individuals are typically entirely healthy. Hair restoration surgery using follicular unit transplantation has been a successful treatment modality for TTA </p>