Craniofacial dysostosis

What it means

A characteristic appearance resulting from defective ossification of craniofacial bones.

Note: This term is used in the medical literature to describe an appearance of the face of patients with Crouzon syndrome (also called craniofacial dysostosis), which is characterized by acrocephaly, exophthalmos, hypertelorism, strabismus, parrot-beaked nose, and hypoplastic maxilla. This is thus probably mainly used as a bundled term and should be replaced by better descriptions in the future.

Rare diseases that can present with this2

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

Also called: Crouzon syndrome