Foreign body ingestion represents a frequent reason for emergency endoscopy. The endoscopic procedure is a successful technique which allows the removal of the foreign bodies in almost all cases without significant complications. Surgery is rarely required.

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http://ClinicalTrials.gov registration number: NCT01095835.

In patients with high disease burden, the use of cfDNA for genetic profiling when biopsy is unavailable may be feasible. Our results support further investigations into the clinical utility of cfDNA in a larger cohort of patients.