Tinea Manuum Caused by Trichophyton benhamiae Following Exposure to a Pet Guinea Pig in the United States.

Tinea manuum may result from direct contact with animals infected with zoophilic dermatophytes. We present a case of tinea manuum in a 32-year-old woman caused by Trichophyton benhamiae, an emerging fungal pathogen frequently associated with guinea pig exposure. This case highlights a potentially unique pattern of zoonotic transmission, encourages clinicians to consider T. benhamiae in the differential diagnosis of inflammatory tinea manuum, and underscores the importance of advanced diagnostic methods for accurate fungal identification.