Hello. I recently noticed I have a rather long dent in the top right of my head. I m not sure if it s a dent or if the fontanelle is raised(or the others sunk). I m 29 years old, and I m almost certain it wasn t always like this. It starts just below the hairline, just to right of the center of my forehead, and curves to about an inch above my right ear. It s hard and doesn t give at all, and doesn t move under my skin. It s about 5 inches long and uninterrupted. Any clue? Thank you.