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Canadian Journal of Gastroenterology
Volume 14, Issue 4, Pages 337-339
Brief Communication

Hereditary Angioneurotic Edema and Familial Crohn’s Disease

Hugh J Freeman

Department of Medicine (Gastroenterology), University of British Columbia, Vancouver, British Columbia, Canada

Received 21 December 1998; Revised 8 June 1999

Copyright © 2000 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A 29-year-old man with Crohn’s disease involving the ileum and cecum was seen. He had angioneurotic edema with C-1’ esterase inhibitor deficiency. Later, his 50-year-old mother was evaluated because of abdominal pain. She had recurrent urticaria, C-1’ esterase inhibitor deficiency and radiographic studies showed Crohn’s disease of the ileum. A maternal family history revealed other members affected with either Crohn’s disease or angioneurotic edema. The clinical observations in this family suggest that angioneurotic edema associated with C-1’ esterase inhibitor deficiency may be closely linked genetically with a familial form of Crohn’s disease.