Hiatus Hernia

A diagnostic endoscopy is an examination to look at your internal organs using an instrument called an endoscope.

An upper gastrointestinal (GI) endoscopy is a procedure to look at the inside of the oesophagus (gullet), stomach and duodenum using a flexible telescope.

An upper gastrointestinal (GI) endoscopy is a procedure to look at the inside of the oesophagus (gullet), stomach and duodenum using a flexible telescope. This procedure is sometimes known as a gastroscopy.