科研之友
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摘要
hereditary angioedema is a disorder characterized by episodes of angioedema of the skin, respiratory and gastrointestinal tract resulting from a defect in the c1 esterase inhibitor. the disease is hereditary. inheritance is autosomal dominant with incomplete penetration. we report a 56-year-old man with edema in different locations as forearm, testicles and palms. it started recently. the study showed low levels of c4, and c1 inhibitor. he was diagnosed of hereditary angioedema and it was necessary the family study.
