I agree with roadrunner. Your pathology report is a bit confusing. Normally, when a biopsy is taken there is some visible abnormality that is being biopsied, like a polyp, or a mass, or a lump, or a lesion, or a tumor, etc. But in this case, the object of the biopsy is said to be a whole segment of the colon.
This seems to be a bit unusual to me, and it seems to suggest something non-cancerous but nonetheless troublesome that needs to be attended to.
For a patient 70 years old, it could be some sort of deterioration of the inner mucous layer of the colon, something similar to the way that our skin becomes wrinkled as we grow older, or the way that eyes develop cataracts as we grow older. It might be something like diverticulosis, which is rather common in older people. Or it might be related to something like ischemic colitis, where a section of the colon develops a shortage of blood supply, perhaps due to a long-standing build-up of cholesterol in the blood vessels feeding that part of the colon.
All of the above is pure speculation on my part, but what I am really trying to say is that I think it would be very important for you to get to the bottom of this and demand a proper diagnosis before any attempt is made to remove the dysplasia via a simple colonoscopy procedure. The medical issue that you have may need a different kind of treatment from what a gastroenterologist can do with a simple colonoscope. It may require treatment by a different kind of expert specialist who would be able to do some sort of endoscopic micro-surgery with the assurance that a fragile colon will not be perforated by the procedure.
What concerns me right now is this statement of yours:
She [gastroenterologist] believes that there is a 98% certainty that it is and will remain dysplasia which I take it will be fully removed at the next procedure and re-biopsied.
This seems to suggest that the gastroenterologist may try to remove or scrape off the layers of tissue that seem to show dysplasia, but in my opinion, this type of micro-surgery should be done by a different type of professional, a surgeon specializing in endoscopic microsurgery.
Again, this is just my personal opinion, but you may want to discuss some of these things with the gastroenterologist before you sign the consent form for your next colonoscopy.