Hi Ian,
Any specific questions you have relating to your MRI results are best discussed with the neurologist once they have your full reports. They will be able to explain whether this finding may be linked to your stroke, taking into account your full medical history.
You may have likely found this online but taken from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5024744/
"A fetal posterior cerebral artery (FPCA) is a variant of cerebrovascular anatomy in which the distal posterior cerebral artery (PCA) territory is perfused by a branch of the internal carotid artery (ICA)."
If you want to discuss further don't hesitate to call us on StrokeLine 1800 787 653.
Best wishes,
Simone (StrokeLine)