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A resectoscope is a surgical instrument used to remove tissue from the uterus, prostate, bladder, or urethra. It is a type of endoscope, an instrument that combines a camera and instrumentation so doctors can view a surgical site and perform surgery through the same incision.
The endoscope can be used as a surgical tool as well as a device to perform biopsy, in order to collect tissue samples and check whether cancer has spread deep beneath the lining of the digestive tract. The patient is sedated during the entire endoscopic mucosal resection procedure.