| HP:0000006 | Autosomal dominant inheritance | "A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in heterozygotes. In the context of medical genetics, an autosomal dominant disorder is caused when a single copy of the mutant allele is present. Males and females are affected equally, and can both transmit the disorder with a risk of 50% for each child of inheriting the mutant allele." [HPO:curators] |
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| HP:0000256 | Macrocephaly | "The presence of an abnormally large `skull` (FMA:46565)." [HPO:probinson] |
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| HP:0000276 | Long face | |
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| HP:0000278 | Retrognathia | |
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| HP:0000316 | Hypertelorism | |
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| HP:0000358 | Posteriorly rotated ears | "A type of `abnormal location of the ears` (HP:0000357) in which the position of the ears is characterized by posterior rotation (the superior part of the ears is rotated towards the back of the head, and the inferior part of the ears towards the front)." [HPO:probinson] |
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| HP:0000369 | Low-set ears | "Low-set ears are defined to be set below an arbitrary line drawn between the lateral canthus of the eye and the occipital protruberance." [HPO:curators] |
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| HP:0000455 | Broad nasal tip | |
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| HP:0000508 | Ptosis | "Drooping of the eyelid." [HPO:curators] |
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| HP:0000520 | Proptosis | |
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| HP:0000750 | Impaired language development | |
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| HP:0000939 | Osteoporosis | "Osteoporosis is a systemic skeletal disease characterized by low bone density and microarchitectural deterioration of bone tissue with a consequent increase in bone fragility. According to the WHO, osteoporosis is characterized by a value of BMD 2.5 standard deviations or more below the young adult mean." [HPO:curators] |
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| HP:0001249 | Mental retardation | |
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| HP:0001250 | Seizures | "Seizures are an intermittent `abnormality of the central nervous system` (FMA:HP:0002011) due to a sudden, excessive, disorderly discharge of cerebral neurons and characterized clinically by some combination of disturbance of sensation, loss of consciousness, impairment of psychic function, or convulsive movements." [HPO:probinson] |
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| HP:0001263 | Developmental retardation | "A delay in the achievement of motor or mental milestones manifested prior to age 18 and generally associated with lifelong mental and/or physical impairments." [HPO:curators] |
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| HP:0001290 | Generalized hypotonia | "Generalized muscular hypotonia (abnormally low muscle tone)." [HPO:curators] |
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| HP:0001631 | Atrial septal defect | "Atrial septal defect (ASD) is a congenital heart defect that enables blood flow between the left and right atria via the interatrial septum. The three common types of ASD are sinus venosus defects, ostium secundum defects, and ostium primum defects." [HPO:curators] |
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| HP:0001943 | Hypoglycemia | "A lower than normal level of blood glucose." [HPO:curators] |
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| HP:0002119 | Ventriculomegaly | |
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| HP:0002553 | Arched eyebrows | |
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| HP:0002650 | Scoliosis | "The presence of an abnormal lateral curvature of the spine." [HPO:curators] |
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| HP:0002808 | Kyphosis | |
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| HP:0003593 | Early onset | |
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| HP:0003812 | Phenotypic variability | |
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| HP:0005616 | Accelerated skeletal maturation | "An abnormally increased rate of skeletal maturation. Accelerated skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body." [HPO:curators] |
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| HP:0006191 | Deep palmar creases | "An increased depth of the palmar creases." [HPO:curators] |
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| HP:0008872 | Feeding problems in infancy | |
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