Thank you for your kind response. It is very appreciated.
Hello.
From the images, it is difficult to say if the dysplasia is pressing on the prefrontal cortex. The cortex outline appears to be well preserved. Given the fact that the growth is stable, I do not suspect it is pressing on the brain. But if it is, it will mostly be the orbitofrontal part of the prefrontal.
There is some evidence which suggests the prefrontal cortex (dorsolateral prefrontal cortex) may be involved in the "increased alertness" of depersonalization. But since derealization and depersonalization are regarded primarily as symptoms of anxiety, it will need some strong evidence to prove otherwise. And I suppose we do not have such an evidence yet. We do have some more evidence that organic brain diseases do cause these symptoms. But most of them do not mention frontal lobe or prefrontal cortex as a direct association.
The headache, however, does appear to be related to the dysplasia. A feeling of pressure on the frontal part of the head is commonly described. It is mostly due to the increased metabolism at the site.
Bisphosphonates are meant for symptomatic relief. They help prevent further damage to the bone structure. Just be careful about any dental procedure before starting bisphosphonates. There is good evidence for the beneficial effects of bisphosphonates in monostotic fibrous dysplasia.
There are chances of bleeding if fibrous dysplasia is associated with a bone cyst formation. Fibrous dysplasia is itself a rare bone tumor. It needs to be extensive and with bone cysts, for bleeding to occur (as per some studies).
You have also mentioned about palinopsia. I have personally seen only one patient who complained of palinopsia. The person was suffering from chronic mental health issues.
I did try to look for recent evidences for palinopsia as a symptoms of bone tumors in the skull. But there is no conclusive evidence. This does not mean they are not correlated. An ophthalmologist's response will be more valuable than mine.
Please note that I am not a Neurologist or a Radiologist. Since this is not a Neuro Experts' forum, and since you have mentioned derealization and depersonalization as two of your symptoms, I feel I could put some comments in. I do hope some Neurology experts are able to throw more light on this, particularly what you should expect in future from the bisphosphonate treatment and about palinopsia.
Regards
Abhijeet Deshmukh, MD
The MD at Medhelp is unable to answer your question. Good luck.
Also, I don't know if you read these responses, but I was also wondering if you could explain what it is that I feel in terms of my pressure headache. Is it benign bone pain, increased blood pressure in the head, etc, and can I have a brain bleed from this tumor?
PS- in regards to the palinopsia, naturally I have also had an eye exam which was normal as well