Abnormality of the face Abnormal skull morphology Craniofacial dysostosis 2008-03-18T09:58:00Z Crouzon syndrome HP:0004439 UMLS:C0010273 SNOMEDCT_US:28861008 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. A characteristic appearance resulting from defective ossification of craniofacial bones.