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Living with Autoimmune lymphoproliferative syndrome type 2B

A rare genetic condition with swollen lymph nodes, an enlarged spleen, and repeated herpes virus infections.

Understanding Autoimmune lymphoproliferative syndrome type 2B

Autoimmune lymphoproliferative syndrome type 2B is a rare genetic disorder that causes swollen lymph nodes and spleen and repeated infections from herpes viruses.

It begins in childhood. Other features can include chronic diarrhea, slow growth, eczema, asthma, and repeated lung and sinus infections.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Swollen lymph nodes
  • Enlarged spleen
  • Repeated herpes infections
  • Repeated sinus and lung infections
  • Chronic diarrhea and poor weight gain
  • Eczema and asthma

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include allergy and immune system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in CASP8 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Immune Deficiency Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Allergy and immune system specialists (allergists / immunologists); Genetic specialists (geneticists)
Expert care
Expert lists: Immune Deficiency Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Immune Deficiency Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
How should repeated herpes infections be managed?
How is my immune function monitored?
Would CASP8 testing help our family?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Recessive
GenesCASP8

GARD says changes in the CASP8 gene cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

Genetic

Also known as: alps with recurrent viral infections; alps2b; autoimmune lymphoproliferative syndrome caused by mutation in casp8; autoimmune lymphoproliferative syndrome type iib; autoimmune lymphoproliferative syndrome with recurrent viral infection; autoimmune lymphoproliferative syndrome with recurrent viral infections

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Autoimmune lymphoproliferative syndrome type 2BGARD ID 9796 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Autoimmune lymphoproliferative syndrome type 2B.

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