Heterotopic gastric mucosa (HGM) can be found throughout the entire gastrointestinal tract, more frequently in the cervical oesophagus. Macroscopic HGM is named inlet patch (IP). The great majority of IPs are asymptomatic and discovered incidently during oesophageal endoscopy performed for another pathology. However, complications can occur. Among these, perforation is extremely rare. We report a case of a 27-year old man who presented with a perforation of an upper oesophageal ulcer arising from an IP. The diagnosis was made during endoscopy and confirmed with biopsy of the tissue surrounding the perforation, showing histologic modifications consistent with heterotopic gastric mucosa. Medical treatment using a proton pump inhibitor and antibiotics delivered with a gastric tube was advocated. The perforation was closed at day 7 and plasma Argon coagulation of the inlet patch was performed two months later. Annual endoscopy has been normal for three years.
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