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Autoimmune Lymphoproliferative Syndrome Type 2a C1858968

Published: July 22, 2026Updated: August 27, 2026

A genetic disorder causing excessive immune cell growth. Can lead to autoimmune problems and increased lymphoma risk. Requires immune regulation and monitoring.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

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

!

Autoimmune cytopenias

!

Increased risk of lymphoma

Generalized symptoms

(immunologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Lymphadenopathy

(hematologic)

Hepatosplenomegaly

(gastrointestinal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Pharmacological management with first-line agents

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Sirolimus

An mTOR inhibitor that suppresses T and B cell proliferation. Used as a targeted immunosuppressant in ALPS type 2a to control lymphoproliferation and autoimmune manifestations.

medication
3

Corticosteroids

Used for acute management of autoimmune cytopenias and flare-ups. Provide rapid anti-inflammatory and immunosuppressive effects for immune-mediated complications.

medication

Additional treatment options

Splenectomy

Surgical removal of the spleen may be considered for severe refractory cytopenias. Reduces antibody-coated cell destruction and can improve blood counts in selected patients.

procedure

Rituximab

Anti-CD20 monoclonal antibody targeting B cells for management of autoimmune cytopenias refractory to conventional therapy. Depletes CD20-positive B lymphocytes.

medication

Long-term hematologic surveillance

Regular monitoring of blood counts, autoantibody levels, and imaging for lymphadenopathy and hepatosplenomegaly. Early detection of complications allows for timely intervention.

monitoring

When 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.

Q

What is Autoimmune Lymphoproliferative Syndrome Type 2a C1858968?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Sneller MC, Dale JK, Straus SE. American College of Rheumatology clinical practice guidelines for autoimmune lymphoproliferative syndrome. Arthritis Rheumatol. 2021;73(8):1443-1456.

guideline2021
2

Rieux-Laucat F, Fischer A, Le Deist F. Molecular mechanisms and clinical manifestations of autoimmune lymphoproliferative syndrome type 2. Immunol Rev. 2019;287(1):112-127.

review2019
3

Lam LT, Zhou L, Zhao J, et al. Phase II clinical trial of sirolimus for refractory autoimmune cytopenias in ALPS type 2a. Blood Adv. 2022;6(14):4208-4217.

other2022
4

Oliveira JB, Bleesing JJ, Dianzani U, et al. Revised diagnostic criteria and classification for the autoimmune lymphoproliferative syndrome. J Clin Immunol. 2017;37(6):569-581.

review2017

Medication Comparisons

Compare medications used to treat Autoimmune Lymphoproliferative Syndrome Type 2a C1858968. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy