Acquired C1 Esterase Inhibitor Deficiency
Acquired C1 esterase inhibitor deficiency presents with symptoms indistinguishable from hereditary angioedema, but generally with onset after the fourth decade of life.:153
C4 levels are low and C3 levels are normal.
See also
- Hereditary Angioedema
- Wheal response
- Urticaria
- Skin lesion
- List of cutaneous conditions