SANCHEZ-MORILLAS, L. et al. Hereditary angioedema of delayed onset. []. , 21, 2, pp.44-46. ISSN 0212-7199.

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.

: Hereditary angioedema; Quincke’s edema; C₁ esterase inhibitor.

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