Intestinal angioneurotic edema

Background: This 38-year-old female patient presented at the emergency department with subacute low abdominal pain for 3 days. There was little abdominal tenderness, but no signs of peritonitis. Her blood results showed little inflammation with mild leukocytosis 13.0 (3.5-11.0 x 10*3/µL) and mild CRP elevation 44 (< 5 mg/L). The patient had a CT scan of the abdomen on the same day. The day after, a colonoscopy was performed which was perfectly normal. Because the discrepancy between the findings on CT scan, biochemistry and colonoscopy, the patient underwent an explorative laparoscopy, which showed a normal colon. Two days after the initial CT scan, a control CT scan was performed