A biopsy.: Although endorectal mri, ultrasound, and blood tests are improving, the only way to diagnose prostate cancer is by a biopsy. Called a transrectal ultrasound guided biopsy (trus-biopsy), 12-14 samples are taken using a small needle using ultrasound images as a guide. If you are concerned or have a family history of prostate cancer, speak to a urologist
Answered 5/8/2013
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