Endoscopic ultrasound in the diagnosis of foreign bodies of the colon and rectum

Although the ingestion of foreign bodies is a common clinical problem, severe complications such as perforation are rare and occur in less than 1% of cases. Different types of foreign bodies and the various affected regions within the gastrointestinal tract make foreign body ingestion a complex entity, with a wide range of presentation requiring different diagnostic modalities. We report two cases of patients who underwent endoscopic ultrasound for evaluation of subepithelial lesions consisting of foreign body granulomas in the colon and rectum. Colorectal foreign body granuloma is a rare complication after accidental ingestion. Endoscopic ultrasound can be a useful diagnostic tool and can avoid the need for more invasive procedures.