dent on baby bead

Baby has a dent “flat” spot on the back of her head. Took her to the doc and she said it was her posterior fontalle however I thought that was towards the bottom of the head in the middle. And this is more on the back of her head on the upper partz not the anterior fontalle. it’s like a couple of inches below that once the head curves down

could this be what doc said or something else????