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Trichoscopy features of trichotillomania
José M Martín1,2, Encarnacion Montesinos1, Pilar Cordero1
1Department of Dermatology, Hospital Clinico Universitario, Valencia, Spain.
Pediatric Dermatology
|February 13, 2019
Summary
Trichotillomania, a hair-pulling disorder, can mimic alopecia areata. Dermoscopy reveals specific hair shaft abnormalities like black dots and varying lengths, aiding diagnosis.
Area of Science:
- Dermatology
- Trichology
Background:
- Trichotillomania is a compulsive hair-pulling disorder causing traction alopecia.
- It can present with clinical and dermoscopic features overlapping with alopecia areata.
Observation:
- Trichoscopic examination is crucial for differentiating these conditions.
- Key features include black dots, coiled/hook hairs, and trichoptilosis (frayed/split ends).
Findings:
- The absence of exclamation mark hairs and yellow dots is highly suggestive of trichotillomania.
- These specific dermoscopic findings help distinguish it from other forms of hair loss.
Implications:
- Accurate diagnosis through dermoscopy is vital for appropriate treatment of trichotillomania.
- Understanding these differentiating features improves patient management and outcomes.
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