Hello dear Greetings Regarding your neighbor diagnosed with leaking blood vessels on the right side of her brain with facial swelling yes it is case for concern I am suggesting she has developed one of the following conditions subarachnoid hemorrhage Intracranial hemorrhage Cerebral tumor Obstructive hydrocephalus (swollen brain due to obstruction) In view of this she will require a CT scan to rule out the above conditions Hence let her see the neurosurgeon for further clinical assessment and possible surgical interventional procedures likely a bore hole surgery I hope this helps Regards and get well soonest