Tehran University of Medical Sciences Iranian Journal of Microbiology 2008-3289 14 6 2022 12 07 932 936 Thi Minh Chau Ngo Department of Parasitology, Hue University of Medicine and Pharmacy, Hue University, Hue, Viet Nam Phuong Anh Ton Nu Department of Parasitology, Hue University of Medicine and Pharmacy, Hue University, Hue, Viet Nam Le Chi Cao Department of Parasitology, Hue University of Medicine and Pharmacy, Hue University, Hue, Viet Nam Thi Ngoc Thuy Ha Department of Parasitology, Hue University of Medicine and Pharmacy, Hue University, Hue, Viet Nam Thi Bich Thao Do Department of Parasitology, Hue University of Medicine and Pharmacy, Hue University, Hue, Viet Nam Giang Tran Thi Department of Parasitology, Hue University of Medicine and Pharmacy, Hue University, Hue, Viet Nam 2022 08 19 2022 11 09 Fusarium spp. are the common onychomycosis pathogens in non-dermatophyte molds, and are considered resistant to many antifungal agents. We reported onychomycosis of the fingernail caused by Fusarium solani in Vietnam. The minimum inhibitory concentration of terbinafine against the tested isolate was 1µg/ml, which was the lowest of all antimycotic agents. The patient was successfully treated with a daily dose of 250mg terbinafine for two months, and no recurrence occurred after a one-year follow-up. Antifungal susceptibility testing is recommended in Fusarium onychomycosis. https://ijm.tums.ac.ir/index.php/ijm/article/view/3873 https://ijm.tums.ac.ir/index.php/ijm/article/download/3873/1535