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Craniometaphyseal dysplasia, autosomal dominant
Autosomal dominant craniometaphyseal dysplasia (designated AD-CMD in this review) is characterized by progressive diffuse hyperostosis of cranial bones evident clinically as wide nasal bridge, paranasal bossing, widely spaced eyes with an increase in bizygomatic width, and prominent mandible. Development of dentition may be delayed and teeth may fail to erupt as a result of hyperostosis and sclerosis of alveolar bone. Progressive thickening of craniofacial bones continues throughout life, often resulting in narrowing of the cranial foramina, including the foramen magnum. If untreated, compression of cranial nerves can lead to disabling conditions such as facial palsy, blindness, or deafness (conductive and/or sensorineural hearing loss). In individuals with typical uncomplicated AD-CMD life expectancy is normal; in those with severe AD-CMD life expectancy can be reduced as a result of compression of the foramen magnum. [from GeneReviews]
Barber-Say syndrome
Barber-Say syndrome (BBRSAY) is a rare congenital condition characterized by severe hypertrichosis, especially of the back, skin abnormalities such as hyperlaxity and redundancy, and facial dysmorphism, including macrostomia, eyelid deformities, ocular telecanthus, abnormal and low-set ears, bulbous nasal tip with hypoplastic alae nasi, and low frontal hairline (summary by Roche et al., 2010). [from OMIM]
Gabriele de Vries syndrome
Gabriele-de Vries syndrome is characterized by mild-to-profound developmental delay / intellectual disability (DD/ID) in all affected individuals and a wide spectrum of functional and morphologic abnormalities. Intrauterine growth restriction or low birth weight and feeding difficulties are common. Congenital brain, eye, heart, kidney, genital, and/or skeletal system anomalies have also been reported. About half of affected individuals have neurologic manifestations, including hypotonia and gait abnormalities. Behavioral issues can include attention-deficit/hyperactivity disorder, anxiety, autism or autistic behavior, and schizoaffective disorder. [from GeneReviews]
Neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination
Neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination (NEDMEHM) is an autosomal recessive neurometabolic disorder characterized by these cardinal features. Patients also show an exaggerated startle reflex in early infancy (Rodan et al., 2018). [from OMIM]
Khan-Khan-Katsanis syndrome
Khan-Khan-Katsanis syndrome (3KS) is an autosomal recessive neurodevelopmental disorder with variable involvement of the ocular, renal, skeletal, and sometimes cardiac systems. Affected individuals present at birth with multiple congenital anomalies, defects in urogenital and limb morphogenesis, poor overall growth with microcephaly, and global developmental delay (summary by Khan et al., 2019). [from OMIM]
Intellectual developmental disorder, autosomal dominant 73
Autosomal dominant intellectual developmental disorder-73 (MRD73) is a highly variable neurodevelopmental disorder characterized by impaired intellectual development that ranges from mild to severe, speech delay, behavioral abnormalities, and nonspecific dysmorphic facial features (Janssen et al., 2022). [from OMIM]
Neurodevelopmental disorder with dysmorphic facies, sleep disturbance, and brain abnormalities
Neurodevelopmental disorder with dysmorphic facies, sleep disturbance, and brain abnormalities (NEDFASB) is a syndromic disorder with multisystemic involvement. Affected individuals have severe global developmental delay with severely impaired intellectual development, poor or absent language, behavioral abnormalities, seizures, and sleep disturbances. Craniofacial dysmorphisms, while variable, include round face, prognathism, depressed nasal bridge, and cleft or high-arched palate. Brain imaging shows dysgenesis of the corpus callosum and progressive cerebellar atrophy. Additional features may include genitourinary tract anomalies, hearing loss, and mild distal skeletal defects (summary by Humbert et al., 2020). [from OMIM]
Epiblepharon
Redundant eyelid skin pressing the eyelashes against the cornea and/or conjunctiva. [from HPO]
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