C1 esterase inhibitor deficiency

Acquired C1 esterase inhibitor deficiency
Classification and external resources
Specialty	hematology
ICD-10	D84.1 (ILDS D84.112)
eMedicine	article/104888
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Acquired C1 esterase inhibitor deficiency also known as "Acquired Angioedema" presents with symptoms indistinguishable from hereditary angioedema, but generally with onset after the fourth decade of life.

C4 levels are low and C3 levels are normal.

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