A Zenker's diverticulum is the rarest type of gastrointestinal diverticulum and is located immediately above the upper esophageal sphincter. Here we report the case of a dislodged tooth that entered and remained hidden in a Zenker's diverticulum, and combined use of endoscopy and X-ray fluoroscopy was useful for diagnosis and treatment. To our knowledge, this is the first report of a dislodged tooth located in a Zenker's diverticulum in the perioperative period.
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Yamaguchi et al. (2015) studied this question.
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