Hyper IgM syndrome

Hyper IgM syndrome is a rare immunodeficiency disorder characterized by a decreased ability to fight infections. This condition primarily affects males.

Symptoms

The symptoms of Hyper IgM syndrome typically become apparent in infancy or early childhood. The most common symptoms include frequent and severe bacterial infections, pneumonia, and sinusitis. Other symptoms may include diarrhea, skin rashes, and fever.

Causes

Hyper IgM syndrome is caused by mutations in the CD40LG gene. This gene provides instructions for making a protein that is essential for the body's immune response to infections. Mutations in the CD40LG gene disrupt the function of this protein, leading to the symptoms of Hyper IgM syndrome.

Diagnosis

The diagnosis of Hyper IgM syndrome is based on a clinical evaluation, detailed patient history, and specialized laboratory tests. These tests may include blood tests to measure levels of immunoglobulins, and genetic testing to identify mutations in the CD40LG gene.

Treatment

Treatment for Hyper IgM syndrome is aimed at managing the symptoms and preventing infections. This may include antibiotics to treat bacterial infections, immunoglobulin therapy to boost the immune system, and in severe cases, a bone marrow transplant may be considered.

Prognosis

The prognosis for individuals with Hyper IgM syndrome varies. Some individuals have a normal lifespan with treatment, while others may have life-threatening complications such as severe infections.

See also

• Immunodeficiency disorders
• CD40LG
• Immunoglobulin therapy
• Bone marrow transplant

References

Hyper IgM syndrome Resources
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