[Wiskott-Aldrich syndrome: Case report].

The Wiskott-Aldrich syndrome is a rare X-linked recessive immunodeficiency, with an estimated incidence of 3.5 to 5.2 cases per million males. It is characterized by immunodeficiency, microthrombocytopenia and eczema. We present a 5-year-old Hispanic male, with a medical history of numerous infectious diseases, compromised health, chronic malnutrition, language delay and failure to thrive. An infrequent mutation in the Wiskott-Aldrich syndrome gene was found.