ICD-11

Dermatophytosis (tinea, ringworm) is a superficial infection of the skin, hair or nails by dermatophyte fungi of the genera Trichophyton, Epidermophyton or Microsporum. These fungi normally invade only the outer keratinous layer of the epidermis (stratum corneum), the hair shaft and the nail. They count amongst the commonest infections in man. Some species (e.g. Trichophyton rubrum) are essentially anthropophilic and infect only man whereas others are zoophilic (e.g. Trichophyton verrucosum) but may cause human infection from contact with infected animals.

Dermatophytosis (tinea, ringworm) is a superficial infection of the skin, hair or nails. These fungi normally invade only the outer keratinous layer of the epidermis (stratum corneum), the hair shaft and the nail. They count amongst the commonest infections in man. Some species (e.g. Trichophyton rubrum) are essentially anthropophilic and infect only man whereas others are zoophilic (e.g. Trichophyton verrucosum) but may cause human infection from contact with infected animals.

Dermatophytosis of the skin of the foot (tinea pedis). The lateral interdigital toe clefts are the most common initial site of infection. Longstanding infection with Trichophyton rubrum, the most commonly implicated organism in Europe and North America, characteristically causes dry scaling over the sole of the foot. Other species which regularly invade the skin of the foot include Epidermophyton floccosum and Trichophyton interdigitale.