Echinocandin-resistant Candida albicans: A case report from Japan.

Echinocandin-resistant Candida albicans (C. albicans) is a rare but increasing global concern. In Japan, at least three cases had been confirmed by the end of 2015. Mutations in FKS cause echinocandin resistance in Candida species, which is primarily driven by previous echinocandin antifungal use. C. albicans resistance to echinocandins is raising clinicians' concerns globally and could pose a threat to Japan in the near future. The fungus is also an antimicrobial-resistant pathogen, raising awareness of the risk of resistance to prophylactic antifungals. Herein, we report a case of echinocandin-resistant C. albicans at our hospital. Mutations in the FKS gene that cause echinocandin resistance in Candida species have been detected.