Extensive tinea in a patient with severe combined immunodeficiency.

Severe combined immunodeficiency (SCID) is a heterogeneous group of disorders characterized by a defect of T and B cell immunity with a genetic origin in most cases. Although the X-linked recessive form is most common (60-70%), there are autosomal recessive forms (20%) and spontaneous mutations. While SCID may present with many nosocomial infections, dermatophyte infections are not common. We reported a case of SCID which was associated with a widespread skin infection with Trichophyton mentagrophytes.