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Items: 3

1.

IL21R immunodeficiency

IL21R immunodeficiency is an autosomal recessive primary immunodeficiency characterized by B- and T-cell defects and variable dysfunction of NK cells. Patients tend to have normal numbers of lymphocytes, but show defective class-switched B cells, low IgG, defective antibody response, and defective T-cell responses to certain antigens (summary by Kotlarz et al., 2013). [from GTR]

MedGen UID:
767601
Concept ID:
C3554687
Disease or Syndrome
2.

X-linked severe combined immunodeficiency

X-linked severe combined immunodeficiency (X-SCID) is a combined cellular and humoral immunodeficiency caused by a hemizygous pathogenic variant in IL2RG. In typical X-SCID lack of IL2RG function results in near-complete absence of T and natural killer (NK) lymphocytes and nonfunctional B lymphocytes. X-SCID is almost universally fatal in the first two years of life unless reconstitution of the immune system is achieved through bone marrow transplant or gene therapy. In the absence of family history of X-SCID and prior to newborn screening for X-SCID, most males with typical X-SCID come to medical attention between ages three and six months with failure to thrive, oral/diaper candidiasis, absent tonsils and lymph nodes, recurrent infections, infections with opportunistic organisms such as Pneumocystis, and persistence of infections despite conventional treatment. Additional common features include rashes, diarrhea, cough and congestion, fevers, pneumonia, sepsis, and other severe bacterial infections. Males with atypical X-SCID may have immune dysregulation and autoimmunity associated with rashes, gastrointestinal malabsorption, and short stature. [from GTR]

MedGen UID:
220906
Concept ID:
C1279481
Disease or Syndrome
3.

Ige, elevated level of

An abnormally increased level of immunoglobulin E in blood. [from HPO]

MedGen UID:
116018
Concept ID:
C0236175
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