I wonder if you can reassure my friend, or give her an idea of what this might be?
A few weeks ago she noticed a diagonal dent in her forehead, about 2 inches long. It has been getting longer, and she has been having painful headaches in that area.
She went o a neurologist today, who said he'd never seen anything like it, has no idea what it might be, and booked her in for a CT scan in a month.
Has anyone heard of anything like this?