During 12 months survey on 33 patients with onychomycosis, only one of them showed infection due to scopulariopsis brevicalis. The case was a 38-year-old male with great toe nail lesion which was diagnosed as Trichophyton rubrum based on smear and culture. The patient was treated with 3 weekly pulses of itraconazole, 200mg twice daily during 3 months and showed marked clinical improvement. But 6 months after treatment the case relapsed and this time smear and culture showed infection due to Scopulariopsis brevicalis.