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Trichoscopy as an evaluation method for alopecia areata treatment: A comparative study
Marwa M Fawzy1, Rania Abdel Hay1, Faisal Nouredin Mohammed2
1Dermatology Department, Faculty of Medicine, Cairo University, New Cairo, Egypt.
Journal of Cosmetic Dermatology
|September 29, 2020
Summary
Both platelet-rich plasma (PRP) and intralesional corticosteroids (ILCs) effectively treat alopecia areata (AA). Trichoscopy aids in diagnosing AA and monitoring treatment response for both PRP and ILCs.
Area of Science:
- Dermatology
- Trichology
Background:
- Trichoscopy is a valuable diagnostic and monitoring tool for alopecia areata (AA).
- Platelet-rich plasma (PRP) and intralesional corticosteroids (ILCs) are established treatments for patchy AA.
Purpose of the Study:
- To utilize trichoscopy for diagnosing AA.
- To compare the treatment response of PRP versus ILCs in patients with patchy AA.
Main Methods:
- A comparative study involving 31 patients with patchy AA.
- Patients were divided into two groups: one receiving ILCs and the other receiving PRP monthly for 3 months.
- Evaluations included the Severity of Alopecia Tool (SALT) score, Alopecia Areata Symptom Impact Scale (AASIS), photography, and dermoscopy.
Main Results:
- Significant improvements in trichoscopic findings (follicular units, black dots, broken hairs, dystrophic changes) were observed in both groups.
- Both groups showed significant reductions in final SALT scores compared to baseline.
- The PRP group demonstrated a significant decrease in AASIS scores, unlike the ILCs group.
Conclusions:
- Trichoscopy is effective for diagnosing AA and evaluating treatment efficacy and safety.
- Both ILCs and PRP are effective treatment modalities for patchy AA.
- Trichoscopy may offer insights into predicting treatment response.

