Most of the regular posters here seem to have symptoms which don't show up on an MRI scan. This probably not because an injury showing up on an MRI scan is very unusual or will necessarily be a disaster - instead it is probably because if our injuries are not severe enough to show on an MRI scan we are more likely to be capable of posting on the internet.

There are probably lots of people with enlarged parietal lobes who are worse off than you and are too sick to post on this forum - that doesn't mean you are unusual or that bad things will happen to you.

You are obviously well enough to post on the internet and your doctor has seen the MRI scan and doesn't think anything catastrophic is going to happen. So try not to worry, anxiety is bad for you.