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Clinical Significance of Trichoscopy in Common Causes of Hair Loss in Children: Analysis of 134 Cases
1Department of Medicine, Faculty of Medicine, Mutah University, Mutah, Karak, Jordan.
Insights
Trichoscopy effectively differentiates common pediatric hair loss causes like tinea capitis and alopecia areata. This noninvasive technique visualizes hair shafts and scalps, aiding diagnosis without hair removal.
Area of Science:
- Dermatology
- Pediatric Trichology
- Medical Imaging
Background:
- Hair loss is a prevalent dermatological concern in children.
- Common causes include alopecia areata, tinea capitis, traction alopecia, and trichotillomania.
- Trichoscopy offers noninvasive visualization of hair and scalp for diagnosis.
Purpose of the Study:
- To compare trichoscopic features of common pediatric hair loss conditions.
- To differentiate between tinea capitis, alopecia areata, traction alopecia, and trichotillomania using trichoscopy.
Main Methods:
- Study included 134 pediatric patients with hair loss.
- Diagnostic methods included history, scalp evaluation, fungal scraping, and trichoscopy.
- Patients were categorized into tinea capitis (63), alopecia areata (38), traction alopecia (18), and trichotillomania (15) groups.
Main Results:
- Tinea capitis showed comma-shaped, corkscrew, and broken hairs.
- Alopecia areata featured yellow/black dots and microexclamation marks.
- Trichotillomania and traction alopecia shared features like fraying and breakage, with traction alopecia less commonly showing flame hairs.
Conclusions:
- Trichoscopy is a valuable noninvasive tool for diagnosing pediatric hair loss.
- It enables differential diagnosis by revealing specific features of various hair loss etiologies.
Introduction:
Hair loss is a common and distressing clinical complaint in the dermatology clinics. Common causes of hair loss in children include alopecia areata, tinea capitis, traction alopecia, and trichotillomania. Newly, trichoscopy allows differential diagnosis of hair loss in most cases and allows visualization of hair shafts and scalps without the need of removing hair.
Objective:
The main objective is to compare the different trichoscopic features of common causes of patchy hair in children loss including tinea capitis, alopecia areata, traction alopecia, and trichotillomania.
Patients And Methods:
This study included 134 patients, 63 patients with tinea capitis, 38 patients with alopecia areata, 18 patients with traction alopecia, and 15 patients with trichotillomania. The diagnostic tools for the diagnosis of hair loss problem included a detailed history, evaluation of the child's hair and scalp, fungal scrapping, and trichoscopy.
Results:
Tinea capitis was the most common, and the trichoscopic features were comma-shaped hairs, corkscrew hairs, short broken hairs, and interrupted hairs. While in alopecia areata patients, the most specific features were yellow dots and black dots, microexclamation mark, hair shafts with variable thickness, and vellus hairs, with uncommon features included: monilethrix, coiled, zigzag, and tulip hairs. Trichoscopy of trichotillomania showed hair with fraying of ends, breakage at different lengths, short and coiled hairs, and amorphous hair residues. The trichoscopic features of traction alopecia were similar to those of trichotillomania. However, flame hairs and coiled hairs were less common.
Conclusions:
Trichoscopy is a noninvasive method of examining hair and scalp. It allows differential diagnosis of hair loss in most cases.
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