Isolated angioedema of the small intestine is a rare adverse event in patients taking angiotensin-converting enzyme inhibitors. Here, we present a case of visceral angioedema in a 32-year-old woman who presented with left upper quadrant pain, nausea, vomiting, diarrhea, and characteristic radiographic signs of small bowel angio-edema, six months after starting lisinopril. Her symptoms improved within 48 hours of withholding the offending agent and with supportive care. We discuss the epidemiology, pathophysiology, diagnosis, and management of angiotensin-converting enzyme inhibitor- induced angioedema.
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