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A case of diaphragmatic hernia following colonoscopy.

An 89-year-old woman with a history of traumatic injury was referred to our hospital for further evaluation of anemia. Two days after colonoscopy, she complained of intermittent abdominal pain. An abdominal computed tomography confirmed a left diaphragmatic defect with a herniated transverse colon. She underwent elective laparoscopic repair of the diaphragmatic hernia. Colonoscopy rarely causes or worsens a diaphragmatic hernia. This is a rare case where we observed the development and exacerbation of a diaphragmatic hernia. It is important to pay attention to the development of a diaphragmatic hernia after colonoscopy for patients with a history of traumatic injury.