Pirads 4 on mri and lots of fear
PI-RADS 4 lesion with very low PSA and PSA density — how often can this still be benign?
Hi everyone,
I am 56 years old and I recently underwent a multiparametric prostate MRI after a finding on a previous whole-body MRI.
The MRI identified a small PI-RADS v2.1 score 4 lesion, measuring approximately 8 mm, located in the right posteromedial peripheral zone of the prostate.
The lesion showed:
-Restricted diffusion on DWI/ADC
-Positive dynamic contrast enhancement
-No clear interruption of the prostate capsule
-No involvement of the seminal vesicles
-No evidence of extracapsular extension
The MRI also described other bilateral areas compatible with previous or chronic prostatitis, which makes me wonder whether the PI-RADS 4 lesion could also be inflammatory rather than malignant.
My blood-test profile appears reassuring:
-Total PSA: 0.54 ng/mL
-PSA density: approximately 0.02 ng/mL/cc
-Free-to-total PSA ratio: approximately 38.9%
-PSA has remained consistently very low and stable over the years
-No significant PSA velocity or recent PSA increase
-No family history of prostate cancer
Overall, there seems to be a significant discrepancy between the MRI result, which is suspicious, and the PSA-related biomarkers, which are very favourable.
I understand that, because this is a PI-RADS 4 lesion, I will probably need to undergo a targeted fusion biopsy to obtain a definitive diagnosis.
I am somewhat concerned about the biopsy because I suffer from pudendal neuropathy and chronic pelvic/perineal pain. I am worried that either a transperineal or transrectal procedure could worsen my symptoms. However, if the biopsy is clinically necessary, I will of course proceed with it.
Based on your personal experience, or on similar cases you have seen:
With a PSA of 0.54, PSA density of 0.02, a high free-to-total PSA ratio, stable PSA over time, an 8 mm PI-RADS 4 lesion and possible signs of prostatitis, how likely is it that the biopsy will show a benign inflammatory lesion rather than clinically significant prostate cancer?
I fully understand that only a biopsy can provide a definitive answer. I am mainly interested in hearing experiences from people who had a PI-RADS 4 lesion despite very low PSA values and favourable PSA density.
Thank you for sharing your experiences.