Immunodeficiency with hyperimmunoglobulin M

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Immunodeficiency with hyperimmunoglobulin M
Synonyms Hyper-IgM syndrome
Pronounce N/A
Specialty N/A
Symptoms Recurrent infections, low levels of IgG, IgA, and IgE with normal or elevated IgM
Complications Autoimmune disorders, liver disease, cancer
Onset Usually in infancy or early childhood
Duration Lifelong
Types N/A
Causes Genetic mutations affecting CD40 ligand or other related proteins
Risks Male gender (for X-linked form)
Diagnosis Blood tests showing immunoglobulin levels, genetic testing
Differential diagnosis Common variable immunodeficiency, X-linked agammaglobulinemia
Prevention N/A
Treatment Immunoglobulin replacement therapy, antibiotics, hematopoietic stem cell transplantation
Medication N/A
Prognosis Variable, depending on severity and treatment
Frequency Rare
Deaths N/A


Immunodeficiency with hyperimmunoglobulin M (also known as Hyper IgM syndrome) is a rare and complex primary immunodeficiency disease characterized by low levels of antibodies necessary for defending the body against bacterial or viral infections.

Symptoms[edit]

Patients with Hyper IgM syndrome may experience frequent and severe infections, including pneumonia, sinusitis, and skin infections. Other symptoms may include diarrhea, hepatitis, and encephalitis.

Causes[edit]

Hyper IgM syndrome is caused by mutations in several different genes, including the CD40 ligand gene, which is located on the X chromosome. This is why the disease is more common in males.

Diagnosis[edit]

Diagnosis of Hyper IgM syndrome is based on clinical symptoms, family history, and laboratory tests. These tests may include immunoglobulin levels, antibody response to vaccines, and genetic testing.

Treatment[edit]

Treatment for Hyper IgM syndrome is aimed at preventing and treating infections. This may include antibiotics, immunoglobulin replacement therapy, and in severe cases, hematopoietic stem cell transplantation.

See also[edit]

References[edit]


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