BSIP, LAURENT H.AMERICAIN / SCIENCE PHOTO LIBRARY BSIP, LAURENT H.AMERICAIN / SCIENCE PHOTO LIBRARY
Endoscopy. Doctor performing an endoscopic examination of a patient's stomach. This technique (gastroscopy) involves inserting a flexible, fibre-optic viewing tube (endoscope) through the mouth and down into the oesophagus, stomach and sometimes duodenum. At the end of the tube is a light that illuminates the inside of the body. The view from the end of the tube appears on the monitor (upper left). The technique is used to diagnose the cause of severe upper abdominal pain, or of blood in the vomit or faeces. It is also used to check for stomach ulcers or cancer.
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