Medical Genetics Natural killer cell deficiency Severe herpes viral infection Idiopathic CD4 lymphocytopenia Often asymptomatic Combined t- and B-cell deficiencies Severe combined immunodeficiency (AR or XL) Adenosine deaminase deficiency(AR) Skeletal abnormalities Reticular dysgenesis Pancytopenia Bare lymphocyte syndrome Absence of HLA Ataxia-telangiectasia (AR) Dermatitis, neurologic deterioration Wiskott-Aldrich syndrome ( XL) Eczema, thrombocytopenia Short-limbed dwarfism Cartilage- hair hypoplasia, severe varicella XL lymphoproliferative syndrome Severe epstein-Barr virus infection Phagocytic disorders Defects of cell movement Hyperimmunoglobulinemia E syndrome Staphylococcal infections, eczema, der mattis Leukocyte adhesion defect type 1(AR) Prolonged attachment of umbilical cord. leukocytosis, periodontitis Defects of microbicidal act ivity Chronic granulomatous disease (XL or AR Lymphadenopathy Neutrophil G6PD deficiency Myeloperoxidase deficiency (AR) Chediak-Higashi syndrome (AR) Oculocutaneous albinism, giant granules of neutrophilsMedical Genetics