MonoMAC

MonoMAC is a rare hereditary condition that affects the immune system. It is characterized by a decrease in the number of monocytes, a type of white blood cell that helps fight off infections. This condition also affects other types of white blood cells, including neutrophils, B cells, and natural killer cells. MonoMAC can lead to an increased risk of developing severe, recurrent infections.

Symptoms

The symptoms of MonoMAC can vary greatly from person to person. Some people may have no symptoms, while others may experience frequent infections, fever, fatigue, and weight loss. In some cases, MonoMAC can lead to the development of myelodysplastic syndrome, a condition that affects the bone marrow's ability to produce blood cells.

Causes

MonoMAC is caused by mutations in the GATA2 gene. This gene provides instructions for making a protein that plays a crucial role in the development of many cell types, including white blood cells. Mutations in the GATA2 gene disrupt the normal development of these cells, leading to the characteristic features of MonoMAC.

Diagnosis

Diagnosis of MonoMAC is based on a combination of clinical findings, laboratory tests, and genetic testing. Laboratory tests may show a decrease in the number of monocytes and other white blood cells. Genetic testing can confirm a diagnosis by identifying a mutation in the GATA2 gene.

Treatment

Treatment for MonoMAC is aimed at managing symptoms and preventing complications. This may include antibiotics to treat infections, blood transfusions to replace blood cells, and in some cases, a bone marrow transplant.

Prognosis

The prognosis for individuals with MonoMAC can vary. Some people may live relatively normal lives with few complications, while others may experience severe, life-threatening infections. Early diagnosis and treatment can improve the prognosis.

See also

• GATA2 deficiency
• Myelodysplastic syndrome
• Bone marrow transplant

References

MonoMAC Resources
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