Quote:
Originally Posted by Cherie
All I heard on the news last night that she'd had a "close call" and they were glad she was going to be OK. I can't speculate as to the cause of the aneurysm. Many of us have them and never find out till one ruptures or starts to leak.
My guess is , unless it was a recent development, if it was in her brain, docs have known about it for some time as an MRI of the brain is not likely to miss something of that nature.
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It's very easy to miss an aneurysm on an MRI tailored to screen for MS. A large aneurysm would likely be seen, but a small (but no less deadly) vascular defect could easily be missed if it was asymptomatic, and thus, not something the radiologist would be looking closely for. An
MRA would show it nearly every time.
An aneurysm forms when the vessel wall weakens and cannot withstand the pressure of the arterial bloodflow. It begins to balloon out, which thins it even more, until it finally gives way - like a bubble gum bubble popping.