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Living with Agammaglobulinemia-microcephaly-craniosynostosis-severe dermatitis syndrome

A rare inherited condition with very low antibodies, small head size, skull differences, cleft palate, and severe skin inflammation.

Understanding Agammaglobulinemia-microcephaly-craniosynostosis-severe dermatitis syndrome

Agammaglobulinemia-microcephaly-craniosynostosis-severe dermatitis syndrome is a rare condition with immune, head, and skin differences.

B cells, which make antibodies, are very low (agammaglobulinemia), while T cells are normal. Other features include severe developmental delay, a small head (microcephaly), early closing of skull bones (craniosynostosis), cleft palate, narrow nasal passages, narrow eyelid openings, and severe dermatitis. It is present from pregnancy or infancy.

Signs & symptoms

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

  • Low B cells (low antibodies)
  • Small head size (microcephaly)
  • Cleft palate
  • Early closing of skull bones (craniosynostosis)
  • Developmental delay
  • Skin inflammation (seborrheic dermatitis)

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, brain and nervous system specialists, genetic specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  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); Brain and nervous system specialists (neurologists); Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
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 and other patient organizations
  • 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
Is genetic testing available for our family?
How can infections be prevented or treated early?
Which specialists should be on my child's care team?

Quick facts

Symptoms usually startduring Pregnancy, at Birth, and as an Infant
InheritanceAutosomal Recessive

GARD says changes in genes cause this condition. A child inherits a changed copy of a gene from each parent (autosomal recessive), but GARD doesn't name a gene.

GeneticNeurologicalSkin

Patient organizations

Source: NIH GARD · Agammaglobulinemia-microcephaly-craniosynostosis-severe dermatitis syndromeGARD ID 10011 · 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 Agammaglobulinemia-microcephaly-craniosynostosis-severe dermatitis syndrome.

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