Dermoscopy as a diagnostic tool in demodicidosis

Area of Science:

• Dermatology
• Parasitology
• Medical Diagnostics

Background:

• Traditional diagnosis of Demodex infestation relies on time-consuming microscopy.
• Microscopic identification requires specialized equipment and trained personnel.

Purpose of the Study:

• To evaluate polarized-light dermoscopy for diagnosing demodicidosis.
• To describe dermoscopic findings in patients with varied clinical presentations of demodicidosis.

Main Methods:

• 72 patients with facial eruptions underwent clinical, microscopic, and dermoscopic examination.
• Demodex mites were identified using skin scrapings and dermoscopy.

Main Results:

• Demodicidosis was confirmed in 55 out of 72 patients.
• Dermoscopy revealed specific "Demodex tails" and follicular openings in 54 patients.
• Dermoscopy findings strongly correlated with microscopy results (kappa = 0.86).

Conclusions:

• Dermoscopy provides a valuable tool for real-time diagnosis of Demodex infestation.
• This method aids in the evaluation and follow-up of demodicidosis.
• Specific dermoscopic features are described for the first time.