A Rare Occurrence of Bilaterally Presenting Occipital Congenital Triangular Alopecia in Three Variations

Congenital triangular alopecia (CTA) is a nonprogressive, pattern of hair loss affecting the temporal region with a unilateral predilection. It is extremely rare to have a combination of bilateral and occipital variant. CTA frequently remains undiagnosed or is often misdiagnosed due to the lack of awareness among physicians. Hair transplant or surgical excision remains the mainstay for cosmetic correction. CTA should be considered as a differential diagnosis in cases of nonscarring alopecia. This case also underscores the importance of the need of mastering dermoscopy skills to accurately diagnose and exclude differentials through noninvasive and cost-effective methods. Here, we present the case of an 18-year-old boy exhibiting a rare combination of bilateral and occipital CTA. This unique case features triangular-, oval-, and lancet-shaped alopecic patches on the scalp since birth.