Hereditary angio-edema involving the gastrointestinal tract: CT findings

We report a case of hereditary angio-edema in a young man presenting with r ecurrent abdominal pain for many years. The diagnosis was suspected on the basis of abdominal CT performed during an abdominal attack and was then con firmed by the measurement of serum concentration of C1 esterase inhibitor ( C1-INH). To our knowledge, this is the first case reported of the hereditar y form of angio-edema with isolated abdominal pain and in which the diagnos is was suggested by abdominal CT findings.