See below: After cleaning the lower colon, an ultrasound probe is inserted into the rectum to visualize the gland and lesions, if detectable. A modified large bore needle is used to take cores, usually multiple, from the gland. The tissue is examined by a pathologist for diagnosis for cancer. See this site for more info. http://www.mayoclinic.com/health/prostate-biopsy/my00182.
Answered 1/1/2014
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