Dermoscopic Features of Follicular Dermatoses: A Cross-Sectional Study

Area of Science:

• Dermatology
• Dermoscopy
• Dermatopathology

Background:

• Follicular dermatoses present as papular lesions around hair follicles.
• Clinical diagnosis can be challenging, necessitating advanced tools.
• Limited literature exists on dermoscopic features of follicular dermatoses.

Purpose of the Study:

• To evaluate and document dermoscopic findings in various follicular dermatoses.
• To identify characteristic dermoscopic patterns for differentiating these conditions.
• To establish dermoscopy as a valuable diagnostic aid.

Main Methods:

• A cross-sectional study involving 147 patients was conducted.
• Patients were classified into inflammatory and keratinization follicular dermatoses.
• Dermoscopic examination was performed using a DermLite DL-5 dermoscope.

Main Results:

• Classical findings like keratotic plugs and halos were observed.
• Specific patterns included coiled hair in keratosis pilaris and central yellowish plugs in reactive perforating collagenosis.
• Distinct features were noted for follicular lichen planus, psoriasis, eczema, acne keloidalis nuchae, and Darier disease.

Conclusions:

• Each follicular dermatosis exhibits specific dermoscopic patterns.
• Dermoscopy is a useful, noninvasive tool for differentiating follicular dermatoses.
• Dermoscopic findings can effectively complement histopathology results.