I had an mri angiography of the head, due to occasional numbness that starts from
tongue, and radiates to my entire left side of head and down to the tips of my left finger. I also had multiple labs, eeg, holter monitor, all were normal, with an exception of my angiography. It showed fetal origin of the posterior cerebral arteries bilaterally from the carotid circulation. It also said the basilar artery is small and appears to give rise to both superior cerebellar arteries. What does this mean?