Sorry to hear about your aneurysm. Yes, there are some differences. There are also some evidence that cerebral aneurysms are inherited. The major difference is that peripheral aneurysms are easier to fix as they can be looked at easily during surgery. The kind in the brain are very difficult because of the skull that prevents getting to them to do procedures.
All aneurysms have the potential to rupture.
Depending on the place in the brain and the number we usually try and figure out if they need to be fixed. The size is definitely a factor, location is another factor, age of the patient, symptoms from the aneurysm, etc. In addition, if you are a smoker, drink alcohol, use recr. Yours is seemingly small, that is good. Aneurysms can also grow in size so this is another factor to consider.