Where is a cephalhematoma primarily located?

A cephalhematoma is primarily located below the periosteum and is confined by the cranial sutures. This means that it forms as a result of bleeding between the periosteum (the fibrous membrane covering the skull) and the skull itself, typically as a result of pressure during delivery. Because it is confined by the cranial sutures, a cephalhematoma will not cross these sutures, which distinguishes it from other types of head injuries, like caput succedaneum. The accumulation of blood in a cephalhematoma is encapsulated by the periosteum, which allows it to be distinguished clinically by its limited expansion relative to the sutures, indicating the area of damage and accumulation. Understanding this location is crucial for proper assessment and management of newborns with head injuries.