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Angioedema is a swelling, similar to hives, but the swelling is beneath the skin rather than on the surface. The hives are called welts. It is also possible to have angioedema without hives. See also: Hereditary angioedema
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Hereditary angioneurotic edema (HANE) is a nonsex-linked (autosomal) dominant disease that results from mutations in a gene responsible for producing one of the proteins responsible for human immunity. This disease is also known as hereditary angi...
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