Two Cases of Food-Induced Ileus Caused by Rice Cakes

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We report 2 cases of food-induced ileus caused by rice cakes. Case 1: A 66-year-old woman admitted for abdominal pain and vomiting presented with tenderness, muscle guarding and peritoneal irritation in the abdomen. Computed tomography revealed dilatation of the small intestine and a high density "tumor" in the small intestine. The patient, whose blood pressure was 74/36mmHg, was diagnosed with ileus accompanied by shock, necessitating emergency surgery. White solid foreign matter was found in the ileum about 30cm on the oral side of the ileum end. The intestine was incised and rice cakes were removed. Case 2: A 76-year-old woman admitted for right hypochondrial pain and diagnosed with obstruction of the small intestine was found in CT on admission to have high-density "tumors" in the stomach and small intestine. Rice cakes detected in endoscopy yielded a diagnosis of food-induced ileus caused by rice cakes. CT on the day after addmission showed that rice cakes in the stomach had moved to duodenum and those in the small intestine also moved. Conservative treatment eliminated the symptom. In patients with food-induced ileus caused by rice cakes, rice cakes appear as high-density "tumors" in the intestine in CT, which is useful in diagnosing this problem.
日本腹部救急医学会の論文