Question
Two years ago I was diagnosed with a 4mm brain aneurism. My doctor told me that surgery is not performed until the aneurism is at least 7mm. I have an MRI every year and the size has not changed. Should I be concerned and doing something more?
Answer
In general, the risk of bleeding from a 4mm aneurysm is less than a larger (7mm) aneurysm; however the risk may vary depending on the location, morphology, and other characteristics of the aneurysm.
Therefore, I would recommend that you follow up with a vascular neurologist (or vascular neurosurgeon and/or neurointerventionalist) to evaluate the MRI images, your medical history, and other factors to help you decide the best plan of care.