Widely patent coronal suture

What it means

The presence of a coronal suture (the cranial suture that separates the frontal and parietal bones) that is not ossified but rather wide open at an age when it is normally closed.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category