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Adenosine Deaminase 2 deficiency is an inherited disorder causing inflammation in the body, especially in the tissues that make up the blood vessels (vasculitis). Though the severity and age of onset can vary, most patients begin having symptoms within the first decade of life. Symptoms may include the following: recurrent strokes, fevers, muscle pain, an enlarged liver or spleen, and areas of skin discoloration known as livedo racemosa or livedo reticularis. The strokes can affect physical or cognitive functioning. Other symptoms may include high blood pressure, aneurysms, immune system abnormalities, and necrosis of the fingers/toes. ADA2 deficiency is thought to be caused by mutations in the CECR1 gene and inherited in an autosomal recessive manner. Mutations in the CECR1 gene have also been associated with a familial form of Sneddon syndrome. Individuals with this form of Sneddon syndrome have been reported to have similar findings as those with ADA2 deficiency but with a later onset.
Source: GARD Last updated on 05-01-20
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