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What does a gastroscopy look for?

The digestive system is a long, complex section of our body, stretching from the mouth to the back passage. Many conditions can affect it. For some of these conditions, your doctor may order a gastroscopy – a test that involves inserting a tube with a camera down the throat. Why would you need this test? What conditions can it diagnose? We asked expert surgeon Mr Himaz Marzook for answers.

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