Blood blister-like aneurysms (BBAs) of the internal carotid artery (ICA) are rare and challenging vascular lesions that can lead to serious complications, including subarachnoid hemorrhage.
He explained the aneurysm was "not a blockage", but a "puncture". "It's like, imagine your blood vessel is the garden hose, and the garden hose is weak and it blisters out like a big bubble ...