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Syndrome reference sheet
Generated 13 Oct 2026
Hematology · Hematology / Lymphoproliferative disorders X-linked lymphoproliferative syndrome
Also known as: Duncan disease; XLP
Severe EBV-driven immune dysregulation in males.
- Medical specialty
- Hematology
- Subspecialty
- Hematology / Lymphoproliferative disorders
- Sex & age distribution
- Male: affected; Female: carriers; Children: yes, school age
- Gene(s) involved
- SH2D1A, XIAP
Etiology & mechanism
SH2D1A (XLP1) or XIAP (XLP2) deficiency.
Gene(s) involved (2)
SH2D1AXIAP
Symptoms & signs (5)
fulminant infectious mononucleosishlhhypogammaglobulinemiainflammatory bowel diseaselymphoma