Trichoscopic features in diagnosis of alopecia areata and its relation to severity of alopecia tool (SALT) score | [Journal of Pakistan Association of Dermatologists • 2018]

Author(s):

1. Sarah Elizabeth Dias: Department of Dermatology, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, Kerala, India

2. Vinitha Varghese Panicker: Department of Dermatology, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, Kerala, India

3. Jacob Thomas: Department of Dermatology, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, Kerala, India

4. Soumya Jagadeesan: Department of Dermatology, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, Kerala, India

5. Gopikrishnan Anjaneyan: Department of Dermatology, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, Kerala, India

6. Lekshmi S: Department of Dermatology, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, Kerala, India

Abstract:

Objective To assess the trichoscopic features of alopecia areata, and determine correlation between the findings and the severity of alopecia tool (SALT) score . Methods A cross-sectional study was done on 67 patients in Amrita Institute, Kochi, who were clinically diagnosed with alopecia areata of scalp. Patients were examined using Heine Delta 20 Plus dermoscope. Results Yellow dots were the most common finding on trichoscopy, seen in 86.6% of patients. Black dots were next most common finding, seen in 68.7% of patients, followed by broken hair (59.7%), vellus hair (49.3%) and tapering hairs (25.4%). Grey hair was seen in 11.9% and coiled hair in 7.5% patients. There was a significant relationship between vellus hair and lower SALT score. This study did not find any significant association between the other trichoscopic features of alopecia areata and clinical type or SALT score. Conclusion Scalp lesions in alopecia areata show characteristic features on trichoscopy, such as yellow dots, black dots, broken hair, vellus hair and tapering hair. Trichoscopy is a quick, easy tool in the diagnosis of alopecia and it can be a non-invasive alternative to skin biopsy.

Page(s): 152-156

DOI: DOI not available

Published: Journal: Journal of Pakistan Association of Dermatologists, Volume: 28, Issue: 2, Year: 2018

Keywords:

Alopecia areata , Trichoscopy , severity of alopecia tool SALT score

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