I Have An Indented Scalp In The Fontanelle Portion Of

I have an indented scalp in the fontanelle portion of my skull 2 1/2 inches long and moderately deep. This is due to a blunt force trauma injury as a child (12 yrs. of age). I am 39 and would like to rid myself of this defect. It is a noticeable dent in a conspicuous area of my head. I believe it to be a "soft-tissue" injury and not bone related. Would a great plastic surgeon be able to correct this defect with minimal scarring in the area?