LAUSR

Abstract Treatment-resistant dermatophytosis due to Trichophyton rubrum has emerged as a global public health threat, particularly in endemic areas like India. However, few if any such cases have been reported in the United States. We report a representative case and discuss our experience treating several patients with extensive T. rubrum tinea corporis that persisted despite prolonged treatment with systemic and topical agents, including oral terbinafine. We have witnessed an increasing number of treatment-resistant cases in our clinic over the past five years, though to our knowledge, there have been no reported cases in the United States.