Temporal Triangular Alopecia—Clinical and Dermoscopic Features of a Rare Entity

TL;DR

An 18-year-old woman with a triangular bald spot on her left temple was diagnosed with a rare, non-scarring condition called temporal triangular alopecia.

Contribution

This case report adds to the limited literature on the clinical and trichoscopic features of temporal triangular alopecia.

Findings

The patient had a triangular, non-scarring alopecic patch in the left temporal region since birth.

The condition was diagnosed based on clinical and trichoscopic findings.

No treatment was needed due to the non-progressive nature of the condition.

Abstract

We present the case of an 18-year-old female patient who attended the Dermatology Outpatient Clinic for a routine total body examination. Clinical evaluation revealed a triangular, non-scarring alopecic patch in the left temporal region, which the patient reported had been present since birth. Based on clinical and trichoscopic findings, a diagnosis of temporal triangular alopecia (TTA) was established. Given the non-progressive nature of the condition and the absence of any impact on quality of life, no treatment was initiated at the patient’s request.

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