What anatomical feature does a cephalohematoma typically not cross?

A cephalohematoma is a collection of blood that forms between the periosteum and the skull in a neonate, typically resulting from birth trauma. One key characteristic of a cephalohematoma is its confined nature, which means it does not cross cranial suture lines. This is due to the anatomical structure of the skull, where the periosteum is tightly adhered to the bones at the sutures. As a result, any blood accumulation remains localized within the area bounded by the sutures.

The recognition of this feature is important in clinical practice because it helps differentiate a cephalohematoma from other types of hematomas, such as a caput succedaneum, which can cross suture lines as it is located above the periosteum in the subcutaneous tissue. Understanding this distinction aids neonatal intensive care nurses and other healthcare providers in making accurate assessments and determining the appropriate management for infants presenting with head swelling after delivery.