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Concerns About Recent Biopsy Experience

User
Posted 01 Nov 2023 at 07:41

Hi All,

Following a raised PSA of 7.25 and an MRI showing a 9 mm suspicious area with a PIRAD score of 4, last Friday I had a transperineal biopsy.

Before I had the biopsy procedure, I did a lot of reading on this site and I spoke to the specialist nurses, and felt pretty confident that I had enough knowledge about what I was getting into. However, there are a few things that the Doctor who performed the biopsies said that have left me with some doubts about the accuracy of the biopsy and the information he gave. I wish I had challenged him on a few points, but the procedure was so uncomfortable that I only thought about these issues afterward.

PIRADS Score:

With a PIRADS score of 4, I was thinking that, whilst there’s a fair likelihood that cancer might be found when the samples are analysed, this is not definite, and there could still be no cancer found. However, the Doctor who did the biopsy said that less than 25% of people with a PIRADS of 4 score have cancer, which contradicts the information I've read about PIRADS on this website. I don’t want false hope – I want to be realistic and ready for any bad news, and it's left me feeling unsure about what the PIRADS score means.

DRE (Digital Rectal Examination):

He mentioned that the DRE showed no areas of roughness or bumpiness and declared "it's benign!" He said this literally whilst my legs were up in the stirrups. I thought that cancers contained within the prostate capsule can often not be detected on a DRE. I'm not sure he was in a position to offer me this reassurance, which has raised questions about other things he said.

Prostate Size:

The Doctor mentioned that 26 samples were taken, with most from the area where the abnormality was found. However, he described my prostate as 'huge', measuring 110cc, and stated that an average-sized prostate is 20cc. I joked saying 'I'll take that as a compliment' but he then claimed this means that locating any cancerous cells is like "finding a needle in a haystack." I kick myself for not asking  him to confirm whether the MRI images were used to guide the biopsy, bearing in mind at the time I could feel the needles pinching inside me! I later asked the specialist nurse on here and they could not confirm whether all hospitals use the MRI images to guide sample collection.  I now have doubts about whether, if cancer is found, they have located the full extent of it and whether, if cancer is not found, it could have been missed completely. 

I'm planning to raise these issues with my consultant at the results appointment.

Are biopsies sometimes carried out without using the MRI images?

What questions should I be asking my consultant?

Has anyone had a similar experience?

Edited by member 01 Nov 2023 at 13:20  | Reason: missed a figure out

User
Posted 01 Nov 2023 at 11:44

Almost everyone referred on what used to be called the 2 week wait for potential prostate cancer will have an MRI with a PIRADS result 1-5. Given more people referred don't have prostate cancer than do, 25% is not out of the question, but I would have guessed it was higher than 25% in most hospitals.

The DRE feels through the capsule, so it can feel what's inside the capsule. Prostate cancer is most often in the peripheral (edge) zone at the rear, so DRE is good at picking it up, but it can occur anywhere in the prostate, and DRE won't pick it up anywhere else. Mine was mainly at the front, and my DRE felt normal.

Normal prostate size is usually quoted at about 25-30cc, but many men's prostates never stop growing, so prostates many times this size are common. Mine was 97cc, but was not giving me any symptoms even so. In a recent support group meeting, one member said their prostate was 600cc, which is the largest I've heard of (also heard of a 500cc), and even so it was only just starting to give him problems. While many men get symptoms from an enlarged prostate which get worse as it grows further, not all do. Enlarged prostates are slightly less likely to get prostate cancer.

Your consultant said they took more samples from the suspicious area, so yes they did use the MRI. There are techniques known as MRI fusion where the MRI image is merged with the live ultrasound image which they might have used if they had the equipment capable of doing so.

The principle in the UK since mid-2018 is MRI before biopsy. There were some exceptions during COVID due to lack of access to MRI. Some people can't have MRI due to metallic or electronic implants, in which case a CT scan might be used but doesn't usually differentiate cancer as clearly. There is also a high definition ultrasound which a few centres have, but that's expensive kit.

Edited by member 01 Nov 2023 at 11:46  | Reason: Not specified

User
Posted 01 Nov 2023 at 11:58
Thanks Andy - I will ask whether they used MRI fusion. I thought, with the PI-RAD being 4, it would have been more than 25%, supposed this will be only relevant if they don't find anything

User
Posted 02 Nov 2023 at 11:58

I would think that they will give you the results with details of "target zone" and random samples. 

The steps you learn about prostate cancer are:

PSA: elevated levels depends also on the size of your prostate so it would worth asking how they take this into account with the size of yours.

DRE:  no one noticed anything wrong with my prostate until I had a MRI. So again not a 100% valid test

MRI: if you had an MRI before the biopsy I would guess that they would follow with a target biopsy

BIOPSY: for target biopsy they need to merge the MRI image and the image they have during the biopsy. It is possible that some hospitals don't have yet the technology (I don't know). So it is important to make sure they have results for the target zone.

GLEASON: the biopsy results gives you a Gleason score. The first grade is the most predominant they find in your prostate. The second is the highest grade they find. So make sure that you get the detail and not only a single number. Because a Gleason 7 of 3+4 is different that a 4+3. 

User
Posted 02 Nov 2023 at 12:08
That's really helpful Eric

I've made a note to ask them if they take into account the size of my prostate when looking at my PSA

I'm going to ask it they did a targeted biopsy

Re the Gleason score I've had a good luck at the leaflet on here and think I understand how is it calculated

Thanks again!

 
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