Use of Dermoscopy in the Diagnosis of Temporal Triangular Alopecia

Temporal triangular alopecia (TTA) was an uncommon, non-scarring alopecia typically emerging between ages 2-9 years, characterized by a well-demarcated, spear-shaped area of hair loss in the frontotemporal region. Dermoscopy, a noninvasive diagnostic tool, was crucial in distinguishing TTA from alopecia areata, preventing unnecessary biopsies and treatments. Dermoscopic features of TTA included normal follicular openings with vellus hairs and absence of yellow/black dots and dystrophic hairs. There was no effective treatment for TTA, but hair implants and surgical excision were options for significant aesthetic concerns. Educating parents about the benign nature of TTA was essential.