<prompt> Fracture ala signature is a type of ?Gutter fractureDepressed fracture of skullRing fracture at foramen magnumSutural separation  <response>: Ans. is b i.e., Depressed fracture of skull Fracture -ala-signature signature fracture is also known as depressed fracture of skull vault. Depressed fracture signature fracture or fracture-ala signature :It caused by a heavy weapon with a small striking surface, e.g. hammer which causes a piece of skull bone to get depressed into the cral cavity. 