Which histologic findings are characteristic of acquired angioedema (AAE) due to C1 inhibitor (C1-INH) deficiency (C1-INH-AAE)?

Updated: May 20, 2020
  • Author: Amanda T Moon, MD; Chief Editor: William D James, MD  more...
  • Print
Answer

Histologic findings are indistinguishable from other angioedema types. Features include sparse perivascular mononuclear cell infiltrate and reticular dermal, subcutaneous, or submucosal edema.

Vasodilation may be seen.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!