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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.
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Post-Colonoscopy Colonic Perforation Presenting With Subcutaneous Emphysema: A Case Report. Colonoscopy is performed for both diagnostic and therapeutic indications. Although rare, associated complications can be quite serious. The frequency of these complications depends mainly on the skills of the physicians doing the procedure, and the diagnostic or therapeutic indications. Major complications include adverse anesthetic related events, aspiration pneumonia, bleeding, and colonic perforation. We present a rare case of a post-colonoscopy perforation presenting with subcutaneous emphysema and free mediastinal, and intra-peritoneal air. The patient was successfully managed conservatively with complete resolution of symptoms.