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Items: 5

1.

Severe combined immunodeficiency due to CTPS1 deficiency

IMD24 is an autosomal recessive immunodeficiency characterized by the impaired capacity of activated T and B cells to proliferate in response to antigen receptor-mediated activation. Patients have early onset of severe chronic viral infections, mostly caused by herpesviruses, including Epstein-Barr virus (EBV) and varicella zoster virus (VZV); they also suffer from recurrent encapsulated bacterial infections, a spectrum typical of a combined deficiency of adaptive immunity (CID) (summary by Martin et al., 2014). [from OMIM]

MedGen UID:
863054
Concept ID:
C4014617
Disease or Syndrome
2.

Immunodeficiency 57

MedGen UID:
1648306
Concept ID:
C4748212
Disease or Syndrome
3.

Severe combined immunodeficiency due to CD70 deficiency

Lymphoproliferative syndrome-3 (LPFS3) is an autosomal recessive early-onset immunologic disorder characterized by increased susceptibility to Epstein-Barr virus (EBV) infection in B cells, resulting in abnormal B-cell proliferation and increased susceptibility to B-cell malignancies, including Hodgkin lymphoma. Patients usually have hypogammaglobulinemia without lymphopenia, although some subsets of immune cells may be low and some patients may have recurrent infections. The disorder results from impaired signaling from proliferating B cells to effector T cells that provide immune surveillance. There may be an increased risk of solid tumors in heterozygous carriers (summary by Abolhassani et al., 2017). For a discussion of genetic heterogeneity of lymphoproliferative syndrome, see XLP1 (308240). [from OMIM]

MedGen UID:
1799982
Concept ID:
C5568559
Disease or Syndrome
4.

Agammaglobulinemia 8b, autosomal recessive

Autosomal recessive agammaglobulinemia-8B (AGM8B) is characterized by onset of recurrent infections in early childhood. Laboratory studies of affected individuals show decreased circulating immunoglobulins and decreased peripheral B cells. More variable features may include dysmorphic facies and subtle abnormalities of other immune cells, such as T cells. One patient who developed childhood B-cell acute lymphocytic leukemia (B-ALL) has been described (summary by Ben-Ali et al., 2017). [from OMIM]

MedGen UID:
1808468
Concept ID:
C5676958
Disease or Syndrome
5.

Immunodeficiency 92

Immunodeficiency-92 (IMD92) is an autosomal recessive primary immunodeficiency characterized by the onset of recurrent infections in infancy or early childhood. Infectious agents are broad, including bacterial, viral, fungal, and parasitic, including Cryptosporidium and Mycobacteria. Patient lymphocytes show defects in both T- and B-cell proliferation, cytokine secretion, and overall function, and there is also evidence of dysfunction of NK, certain antigen-presenting cells, and myeloid subsets. Hematopoietic stem cell transplantation may be curative (summary by Beaussant-Cohen et al., 2019 and Levy et al., 2021). [from OMIM]

MedGen UID:
1794249
Concept ID:
C5562039
Disease or Syndrome
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