Colonoscopy
endoscopic examination of the large bowel and the distal part of the small bowel
Colonoscopy (/ˌkɒləˈnɒskəpi/) or coloscopy (/kəˈlɒskəpi/)[1] is the endoscopic test of the large bowel and parts the small bowel.
![](http://up.wiki.x.io/wikipedia/commons/thumb/3/31/US_Navy_110405-N-KA543-028_Hospitalman_Urian_D._Thompson%2C_left%2C_Lt._Cmdr._Eric_A._Lavery_and_Registered_Nurse_Steven_Cherry_review_the_monitor_whil.jpg/220px-US_Navy_110405-N-KA543-028_Hospitalman_Urian_D._Thompson%2C_left%2C_Lt._Cmdr._Eric_A._Lavery_and_Registered_Nurse_Steven_Cherry_review_the_monitor_whil.jpg)
Tests use a CCD camera or a fiber optic camera on a flexible tube passed through the anus. It can provide a visual diagnosis and allow biopsy or removal of suspected colorectal cancer lesions.