" /> Lymphoproliferative syndrome, X-linked, 1 - CISMeF





Preferred Label : Lymphoproliferative syndrome, X-linked, 1;

Symbol : XLP1;

CISMeF acronym : EBVS; IMD5; LYP; XLPD; XLP; XLP1;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Immunodeficiency 5; IMD5; EBVS; XLP; Infectious mononucleosis, severe, susceptibility to; Duncan disease; XLPD; LYP; Ebv infection, severe, susceptibility to; Epstein-barr virus infection, familial fatal; Immunodeficiency, X-linked progressive combined variable; Purtilo syndrome; Lymphoproliferative disease, X-linked;

Description : X-linked lymphoproliferative syndrome, or Duncan disease, is a primary immunodeficiency characterized by severe immune dysregulation often after viral infection, typically with Epstein-Barr virus (EBV). It is a complex phenotype manifest as severe or fatal mononucleosis, acquired hypogammaglobulinema, hemophagocytic lymphohistiocytosis (HLH), and/or malignant lymphoma. Other features may include aplastic anemia, red cell aplasia, and lymphomatoid granulomatosis (Purtilo et al., 1977; Purtilo, 1981; Purtilo and Grierson, 1991; Coffey et al., 1998; Booth et al., 2011). - Genetic Heterogeneity of X-linked/Autosomal Lymphoproliferative Syndrome See XLP2 (300635), caused by mutation in the XIAP gene (300079) also on Xq25; LPFS1 (613011), caused by mutation in the ITK gene (186973) on chromosome 5q32; and LPFS2 (615122), caused by mutation in the CD27 gene (186711) on chromosome 12p13.;

Inheritance : X-linked recessive;

Molecular basis : Caused by mutations in the SH2 domain protein 1A gene (SH2D1A, 300490.0001);

Neoplasia : Hemophagocytic lymphohistiocytosis; Lymphoma;

Laboratory abnormalities : Increased IgM levels; Reduced IgG levels;

Prefixed ID : #308240;

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13/05/2024


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