Acquired C1 esterase inhibitor deficiency

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Acquired C1 esterase inhibitor deficiency
Other names: Acquired angioedema
Edema of the tongue in a person with acquired angioedema.

Acquired C1 esterase inhibitor deficiency presents with symptoms indistinguishable from hereditary angioedema, but generally with onset after the fourth decade of life.[1]: 153 

C4 levels are low and C3 levels are normal.[2]

See also


  1. James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
  2. Markovic SN, Inwards DJ, Frigas EA, Phyliky RP (January 2000). "Acquired C1 esterase inhibitor deficiency". Ann. Intern. Med. 132 (2): 144–50. doi:10.7326/0003-4819-132-2-200001180-00009. PMID 10644276.

External links

External resources