Published in

MDPI, Journal of Fungi, 4(8), p. 360, 2022

DOI: 10.3390/jof8040360



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Onychomycosis Caused by Fusarium Species

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Onychomycosis is a nail fungal infection that produces nail discolouration, thickness, and separation from the nail bed. The species of the Fusarium genus that cause onychomycosis are emerging and the number of cases has increased throughout the years. Microscopic examination, as well as cultures, are required for the accurate diagnosis of onychomycosis. The goal of treatment is to eliminate the organism that causes the disease and restore the nail’s normal appearance. Here, we provide an overview of the onychomycosis cases that have been reported in literature over the last 24 years, which have been caused by the Fusarium species. We performed a review on the onychomycosis cases caused by the Fusarium species from January 1997 to January 2021. Patients aged between 40 and 49 years made up 30.23% of the cases. The most common aetiologic species was Fusarium solani species complex (FSSC), which accounted for 44.11% of the cases, followed by F. fujikuroi species complex (FFSC), which accounted for 17.64%; 14.70% of the cases were due to F. dimerum species complex (FDSC) and 14.70% of the cases were due F. oxysporum species complex (FOSC). Europe accounted for 29.06% of the cases caused by FOSC, whereas Africa accounted for 46.67% of the cases due to FSSC. The clinical presentation of onychomycosis due to Fusarium spp. is commonly the distal–lateral pattern of onychomycosis. Identification of the infectious agent in onychomycosis cases due to Fusarium is crucial in deciding the proper treatment. Although antifungal susceptibility tests have only been performed in a few cases, susceptibility testing can help with patient management.