has characteristic has characteristic ankylosis temporomandibular joint disorder congenital temporomandibular joint ankylosis https://github.com/monarch-initiative/mondo/issues/4069 https://github.com/monarch-initiative/mondo/issues/6751 https://www.malacards.org/card/congenital_temporomandibular_joint_ankylosis Congenital temporomandibular joint ankylosis is a rare maxillofacial disorder characterized by significant reduction in mouth opening (i.e. from a few millimeters to a few centimeters) in the absence of acquired factors (e.g. trauma, infection) contributing to the ankylosis. It is associated with variable degrees of facial dysmorphism (i.e. lateral deviation of the mandible and chin, lower facial asymmetry, retrognathia, micrognathia, dental malocclusion) and patients typically present with feeding and breathing difficulties. Developmental delay, hypotonia, seizures, and additional dysmorphic features (e.g. pectus excavatum, low-set ears, hypoplastic alae nasi) have also been reported. congenital trismus SCTID:763215008 MEDGEN:1638477 UMLS:C4706319 MONDO:0016220 GARD:0020450 Orphanet:210576 congenital