Ringworm - Superficial fungal infections of the skin are among the most common of all pediatric dermatoses. Infection at the sites pictured here may also be termed tinea faciei. T. tonsurans, T. rubrum, and T. mentagrophytes are common pathogens. Cutaneous infection with zoophilic species, such as M. canis, usually results from close contact with a household pet. On the body, fungi lodge in the stratum corneum and do not invade lanugo hairs.