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MonoMAC
The autosomal dominant syndrome associated with monocytopenia, B and NK cell lymphopenia and mycobacterial, fungal and viral infections (abbreviated MonoMAC) is a rare genetic disorder first described by Vihn and colleagues in 2010 and is associated with myelodysplasia, cytogenetic abnormalities, pulmonary alveolar proteinosis and myeloid leukemias. Multiple mutations in the GATA2 are considered to be responsible for this syndrome.
==Signs and symptoms==
This syndrome is characterized by an increased susceptibility to disseminated nontuberculous mycobacterial infections, viral infections, especially with human papillomaviruses, and fungal infections, primarily histoplasmosis, and molds. There is profound monocytopenia, B lymphocytopenia and NK lymphocytopenia. Patients have an increased chance of developing malignancies, including: myelodysplasia/leukemia vulvar carcinoma, metastatic melanoma, cervical carcinoma, Bowen disease of the vulva, and multiple Epstein-Barr virus(+) leiomyosarcoma. Patients may also develop pulmonary alveolar proteinosis without mutations in the granulocyte-macrophage colony-stimulating factor receptor or anti-granulocyte-macrophage colony-stimulating factor autoantibodies. Last, patients may develop autoimmune phenomena, including lupus like syndromes, primary biliary cirrhosis or aggressive multiple sclerosis.
Of the 26, now 28, patients probably afflicted by this syndrome, 48% died of causes ranging from cancer to myelodysplasia with a mean age at death of 34.7 years and median age of 36.5 years.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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