Esophageal foreign body sensation: a rare presentation of angioedema.

Angioedema remains a rare but potentially life-threatening complication of angiotensin-converting enzyme (ACE) inhibitor use. Most presentations involve edema of the tongue or oral pharynx. However, in recent years, a visceral form involving the gastrointestinal tract also has been described. We present the case of a rare presentation of esophageal and retropharyngeal edema related to ACE inhibitor use. A review of ACE inhibitor-related angioedema is also presented.