We are in the middle of a series on prostate cancer.
For this series I am going through a series of guideline statements put out by the American Urological Association and Society of Urologic Oncologists. The Early Detection of Prostate Cancer guidelines can be found HERE
In this episode we are going to cover guidelines 12-16.
Guideline 12. A biopsy of the prostate may identify a cancer with a sufficiently low risk of mortality that could safely be monitored with active surveillance (AS) rather than treated.
This is true. When a prostate biopsy is done it may find a slow-growing, small-volume prostate cancer. We can overtreat prostate cancers. Treatment options all have risk. The goal of identifying prostate cancer is to find those cancers that need treatment and to carefully monitor the rest.
Guideline 13. Clinicians may use magnetic resonance imaging (MRI) prior to initial biopsy to increase the detection of Grade Group (GG) 2+ prostate cancer.
A prostate MRI (Magnetic Resonance Imaging) is a non-invasive imaging technique used to obtain detailed images of the prostate gland and surrounding tissues.
The MRI will be interpreted by a radiologist.
Guideline 14. Radiologists should utilize PI-RADS in the reporting of multi-parametric MRI (mpMRI) imaging.
PI-RADS stands for Prostate Imaging Reporting and Data System. It's a universally applied way of reporting the MRI findings and a way of quantifying risk of cancer.
A higher PiRADS score means that prostate cancer is more likely, but it doesn't confirm a diagnosis. We still need tissue from the prostate to confirm cancer.
Guidelines 15. For biopsy-naïve patients who have a suspicious lesion on MRI, clinicians should perform targeted biopsies of the suspicious lesion and may also perform a systematic template biopsy.
Both the targeted biopsy and the systematic sampling are important. Cancer may be detected only in the target sample or both in the target and the systematic biopsies. The cancer may only be seen in the systematic biopsies and not in the target biopsy.
Guidelines 16 suggest that for patients with both an absence of suspicious findings on MRI and an elevated risk for GG2+ prostate cancer, clinicians should proceed with a systematic biopsy.
This is a guideline guys don’t want to hear. For most patients with a negative MRI who have never had a prostate biopsy the current standard of care is to advise that man to still have a systematic routine biopsy of the tissue.