Whakamahia endoscopically i te taha ki te naianei electrosurgical monopolar ki te tiki biopsies kiko mucosal gastrointestinal me mo te tango polyps sessile. Ko te rewharewha hou i hangaia hei whakarei ake i te pai mo te haere i roto i te anatomy tortuous He momo kapu i hangaia mo nga mucosa/submucosa rereke