Parietal bones are granted with viscoelastic properties contributing to the mechanism by which depressed fractures occur. Because of the mechanics of the trauma, it is exceptional to find a fracture compromising the inner table of the skull but leaving an intact outer table. We present a patient who had a traumatic injury of the head in whom a head-CT evidenced a depressed fracture of the inner table and diploe of the right parietal bone with an intact outer table. Only three other cases have been documented in the literature. It is uncertain if this is because of its low incidence or its complexity, insufficient knowledge around this type of fracture, and its difficult diagnosis that implies the use of advanced imaging studies.