X Linked Lymphoproliferative Syndrome C0549463
A group of X-linked disorders causing abnormal immune responses, often triggered by infections. Mainly affects males. Treatment focuses on infection prevention and immune management.
Key facts at a glance
- ICD-10
- D89.9
- ICD-11
- 3A00.0
- Body system
- immunologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Fever
Generalized symptoms
(immunologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Lymphadenopathy
(immunologic)Hepatosplenomegaly
(hepatobiliary)Unexplained weight loss
(immunologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Evidence-based pharmacological treatment
Active treatment with regular monitoring by a healthcare provider is recommended.
Hematopoietic Stem Cell Transplantation
HSCT remains the definitive treatment for X-linked lymphoproliferative syndrome, providing functional immune reconstitution. Early transplantation before severe complications develop offers the best outcomes.
Epstein-Barr Virus Management
Antiviral therapy and aggressive management of EBV-related complications are critical given the heightened susceptibility. Regular EBV viral load monitoring guides therapeutic interventions.
Additional treatment options
Immunoglobulin Replacement
IVIG supplementation addresses humoral immune deficiency, reducing recurrent infections and potentially modulating aberrant immune responses. Dosing is individualized based on weight and antibody levels.
medicationRituximab for B-cell Targeting
Anti-CD20 monoclonal antibody therapy depletes B-cells and can control lymphoproliferation and autoimmune manifestations. Reserved for refractory cases or as bridge therapy before transplantation.
medicationSurveillance for Lymphoproliferation and Malignancy
Regular imaging and laboratory monitoring detects early signs of lymphoproliferative disease or lymphoma development. Tumor surveillance should include periodic CT scans and tumor marker assessment.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is X Linked Lymphoproliferative Syndrome C0549463?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Tangye SG, Al-Herz W, Bousfiha A, et al. Human Inborn Errors of Immunity: 2019 Update. J Clin Immunol. 2020.
Latour S, Veillette A. SAP-family adaptors in immune cell signaling and immunological diseases. Curr Opin Immunol. 2021.
Griffith LM, McDonald CW, Filipovich AH, et al. Hematopoietic stem cell transplantation for X-linked lymphoproliferative disease. Biol Blood Marrow Transplant. 2019.
Zhang Z, Chen J, Wang Y, et al. Outcomes of Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis in XLP patients: A systematic review. Blood Adv. 2022.
Medication Comparisons
Compare medications used to treat X Linked Lymphoproliferative Syndrome C0549463. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy