Retroperitoneal, Mediastinal and Subcutaneous Emphysema as a Complication of Routine Upper Gastrointestinal Endoscopy

Abstract
Diagnostic endoscopy of the upper gastrointestinal tract is a safe procedure, which, however, is not without complications. We report the rare occurrence of retroperitoneal, mediastinal and subcutaneous emphysema following routine endoscopy, with no obvious evidence of a site of perforation. Possible etiological aspects are discussed. This complication appeared to be a benign clinical condition that was resolved with conservative, non-surgical treatment.

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