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Hereditary angioedema

This section deals with the clinical condition hereditary angioedema, listing the relevant immunological tests, together with a short explanation of their use.

Relevant immunological tests:

Recurrent abdominal pain and/or deep subcutaneous swellings without urticaria (particular occurring after minor trauma), often with family history, may indicate HAE. C4 and C1 inhibitor will be low.

Uncommonly there may be normal C1INH level with defective function. If C4 is very low without other explanation and C1INH normal, C1INH function will be measured.


(Last updated October 8th 2014)