Onychomycosis due to Scopulariopsis brevicaulis: clinical features and response to systemic antifungals

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Abstract
Summary Six cases of Scopulariopsis onychomycosis, including four patients with onychomycosis exclusively caused by Scopulariopsis brevicaulis and two patients with a mixed nail infection (S. brevicaulis + Tricophyton rubrum and S. brevicaulis + T. interdigitale), are reported. Four patients presented with a typical distal subungual onychomycosis characterized by subungual hyperkeratosis and onycholysis of the distal nail plate. In two patients. Scopulariopsis infection produced a total dystrophic onychomycosis associated with painful periungual inflammation. Three patients were treated with four pulses of itraconazole. 400 mg daily for 1 week a month, and three patients with terbinafine, 250 mg daily for 4 months. The mycological examination 8 months after discontinuation of treatment showed that one patient was mycologically cured whereas the remaining five patients still carried S. brevicaulis in their nails. The clinical examination at the end of the follow-up period showed a complete cure of the nail abnormalities in only one patient.