This is called a double contrast barium enema. Only a double contrast barium enema is sensitive enough to be used for screening. Ultrasound Ultrasound uses high-frequency sound waves to create an image of a part of the body. Your doctor may also perform a test called an endorectal ultrasound. A probe is inserted into the rectum to determine how large the tumor is, and whether it has spread.
Tumors can require further testing through surgical biopsy.
Surgical Biopsy Surgical biopsies are performed under general anesthesia at the hospital or in your doctor's office. Surgeons remove a sample of tissue from a tumor and send it to the pathologists for examination. Sometimes, if the lump is small enough, the surgeon can remove it completely during this procedure. All information is intended for your general knowledge and is not a substitute for medical advice or treatment for specific medical conditions. You should seek prompt medical care for any specific health issues and consult your physician before starting a new fitness regimen.