| A rare hereditary primary immunodeficiency characterized by recurrent respiratory tract infection, otitis media, candidiasis, diarrhea, as well as various signs and symptoms of immune dysregulation (hypereosinophilia, eczema, vitiligo, alopecia areata, autoimmune hemolytic anemia, pityriasis rubra pilaris). Failure to thrive, moderate lymphadenopathy and hepatomegaly have also been reported. There is evidence the disease is caused by homozygous mutation in the TRAC gene on chromosome 14q11. |