| HP:0000007 | Autosomal recessive 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 homozygotes. In the context of medical genetics, autosomal recessive disorders manifest in homozygotes (with two copies of the mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele)." [HPO:curators] |
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| HP:0000272 | Malar hypoplasia | "Underdeveloped midface region." [HPO:curators] |
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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:0000705 | Amelogenesis imperfecta | |
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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: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:0001324 | Muscle weakness | "Reduced strength of muscles." [HPO:curators] |
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| HP:0001388 | Joint laxity | |
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| HP:0001508 | Failure to thrive | |
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| HP:0001873 | Thrombocytopenia | |
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| HP:0001955 | Unexplained fevers | "Episodes of fever for which no infectious cause can be identified." [HPO:curators] |
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| HP:0002240 | Hepatomegaly | "An abnormal enlargment of the liver." [HPO:curators] |
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| HP:0002500 | Abnormality of the cerebral white matter | |
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| HP:0002656 | Epiphyseal dysplasia | |
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| HP:0002751 | Kyphoscoliosis | |
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| HP:0002910 | Elevated transaminases | "Elevations of the levels of SGOT and SGPT in the serum. SGOT (serum glutamic oxaloacetic transaminase) and SGPT (serum glutamic pyruvic transaminase) are transaminases primarily found in the liver and heart and are released into the bloodstream as the result of liver or heart damage. SGOT and SGPT are used clinically mainly as markers of liver damage." [HPO:curators] |
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| HP:0003236 | Elevated serum creatine phosphokinase | |
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| HP:0003812 | Phenotypic variability | |
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| HP:0004322 | Decreased body height | "A height below that which is expected according to age and gender norms. Although there is no universally accepted definition of short stature, many refer to "short stature" as height more than 2 standard deviations below the mean for age and gender (or below the 3rd percentile for age and gender dependent norms)." [HPO:curators] |
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| HP:0005484 | Microcephaly, postnatal | |
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| HP:0011800 | Midface retrusion | "Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle." [DDD:jclayton-smith] |
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| HP:0100252 | Diaphyseal dysplasia | |
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| HP:0100255 | Metaphyseal dysplasia | "The presence of dysplastic regions in metaphyseal bones." [HPO:sdoelken] |
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