Endoscopy describes many procedures that look inside the body using some type of endoscope, a flexible tube with a small TV camera and a light on one end and an eyepiece on the other. The endoscope allows doctors to examine the inside of certain tubelike structures in the body. Many endoscopes transmit the doctor's view to a video screen. Most endoscopes have attachments that permit doctors to take fluid or tissue samples for laboratory testing.
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