Welcome to Mayo Connect, @bobbyknik. Amyloidosis occurs when the body produces unusual proteins that bind together to form amyloids. These can collect in various organs of the body, including the heart. This is referred to as Cardiac Amyloidosis and it can be quite serious as it can thicken the heart wall and disrupt heart function. It makes it harder for the heart to fill with blood between heartbeats.

It sounds like you’re getting some conflicted reports with seeing the biopsy vs the imaging? Since the biopsy of your heart was taken directly from the organ involved that would be rather telling that there is amyloid involvement.
What has your doctor discussed with you about your treatment and the testing? What symptoms are you having?