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A 4-Year-Old Boy with Abdominal Pain

	Answer 1 Cricopharyngeal muscle (at C6 vertebral level). Most esophageal foreign bodies (approximately 70%) lodge at the level of the thoracic inlet at the cricopharyngeal muscle. Approximately 15% become lodged at the midesophagus, in the region where the aortic arch and carina overlap the esophagus. The remainder become lodged at the lower esophageal sphincter. Lodging at any other site should suggest coexistent esophageal disease. Click here to return to the questions
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