Tinea Cruris and Pedis Caused by Terbinafine-Resistant Trichophyton rubrum Treated with Luliconazole

A man in his forties soldier from the Japan Ground Self-Defense Force (JGSDF) presented with suspected tinea pedis.The patient had a 25-year history of tinea pedis, intermittent oral terbinafine use, and topical antifungal treatment.Scaly lesions appeared on his left foot (Fig. 1a) and buttocks (Fig. 1b).Direct microscopy confirmed the presence of dermatophytes at both sites.The patient was diagnosed with tinea pedis et cruris, and both the lesions were initially treated with topical terbinafine.After one month, the foot lesions regressed (Fig. 2a), whereas the buttock lesions enlarged (Fig. 2b).Direct microscopy remained positive at both sites.