A 72-year-old woman had a history of carcinoma of the hypopharynx treated by total laryngectomy, circumferential pharyngectomy and free jejunal graft. Endoscopic dilation of the pharyngojejunal anastomotic stricture resulted in synchronous perforations of the oesophagus and stomach. We postulate that the perforations were caused by high intraoesophageal and intragastric pressure resulted from air insufflation during the procedure; in a situation simulating closed-loop obstruction, because of proximal obstruction by the endoscope at the stricture site and distal obstruction by pylorospasm. The sites of perforations were inherent points of weakness at the left side of the distal oesophagus and at the high lesser curve of stomach. Satisfactory outcome of our patient was attributed to prompt diagnosis and surgical repair. Endoscopists should be aware of this possibility during oesophagogastroduodenoscopy and dilation. Rapid and over insufflation of air should be avoided.
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