Trichoscopy of scalp dysesthesia

Area of Science:

• Dermatology
• Trichology
• Medical Imaging

Background:

• Scalp dysesthesia presents as localized itching, burning, or pain.
• Understanding its clinical and trichoscopic presentation is crucial for diagnosis.

Purpose of the Study:

• To identify and describe the characteristic trichoscopic features associated with scalp dysesthesia.

Main Methods:

• Retrospective analysis of 9 patients diagnosed with scalp dysesthesia (2010-2016).
• Analysis of 61 trichoscopic images by two independent evaluators.

Main Results:

• Consistent findings included oval/round patches with short hairs: broom hairs (77%), block hairs (88%), and short hairs with trichorrhexis nodosa (78%).
• Some cases showed circumscribed brownish discoloration, hairless areas with scaling, perifollicular yellow discoloration with cloud vessels, and focal brownish discoloration.

Conclusions:

• Trichoscopy is a valuable tool for diagnosing scalp dysesthesia.
• Characteristic trichoscopic findings like broom hairs, block hairs, and short hairs with trichorrhexis nodosa on alopecia patches are indicative of the condition.