An atypical case of cutaneous candidiasis caused by a face mask: With useful dermoscopic findings
Abstract
Dear Editor, As a consequence of the COVID19 pandemic, skin disorders associated with maskwearing and washing hands, such as acne and dermatitis, have increased, becoming a social issue.1,2 We encountered a patient with atypical cutaneous candidiasis in the area covered by her mask. We herein report the first welldocumented case of cutaneous candidiasis with useful dermoscopic findings. Six months before presentation, a 13yearold girl exhibited erythema around her lips. Despite treatment with topical steroids and antimicrobial agents, there was no improvement, so she visited our department. She showed welldemarcated scaly erythema on her left cheek due to maskrelated friction. We detected reddish papules and some whitish scales at the upper and lower lips. No rash was observed in the oral cavity, tongue, or mouth angle (Figure 1a– c). Suspecting intractable eczema on the cheeks, we performed a skin biopsy. Dermoscopy revealed whitish, irregular, scaly areas with a small central yellow crust on the cheek (Figure 1d). On the chin, which was less scaly, there were multiple small pustules and small, round, whitish structures, both surrounded by a reddish halo (Figure 1e). The small, round structures appeared to correspond to small pustules. However, neither closed nor open comedones, a characteristic symptom of acne, were detected. A potassium hydroxide (KOH) examination revealed numerous pseudohyphae and spores (Figure 1f). Rapidly growing creamy colonies were isolated on a…
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