We've got some perimortem ecchymosis on the posterior occiput.

We've got some peri-mortem ecchymosis on the posterior occiput.

Hits the corner of the step with his occiput. - Case closed.

Radiating circular skull fracture consistent with a hard impact, and this ... a second compression fracture to the occiput.

Depressed skull fractures to the occiput and temporal parietal regions causing massive cerebral contusions and probably a fatal brain stem injury.