| 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:0000252 | Microcephaly | "Microcephaly is a neurodevelopmental disorder in which the circumference of the head is more than two standard deviations smaller than the age- and gender-dependent norm." [HPO:curators] |
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| HP:0000272 | Malar hypoplasia | "Underdeveloped midface region." [HPO:curators] |
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| HP:0000572 | Visual loss | |
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| HP:0000613 | Photophobia | "Excessive sensitivity to light with the sensation of discomfort or pain in the eyes due to exposure to bright light." [HPO:curators] |
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| HP:0000639 | Nystagmus | "Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms." [HPO:curators] |
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| HP:0000951 | Abnormality of the skin | "An abnormality of the `skin` (FMA:7163)." [HPO:probinson] |
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| HP:0000975 | Hyperhidrosis | "An abnormally increased perspiration." [HPO:probinson] |
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| HP:0000982 | Palmoplantar keratoderma | |
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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:0001251 | Ataxia | "Ataxia is a nonspecific neurological sign and symptom consisting of gross lack of coordination of muscle movements. Ataxia is caused by dysfunction of one or more parts of the nervous system including the cerebellum, the sensory nervous system, the vestibular system, or the cerebral cortex." [HPO:curators] |
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| HP:0001337 | Tremor | "An unintentional, oscillating to-and-fro muscle movement." [HPO:curators] |
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| HP:0001510 | Growth retardation | |
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| HP:0001597 | Abnormality of the nails | "Abnormality of the fingernails or toenails." [HPO:curators] |
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| HP:0002167 | Neurological speech impairment | |
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| HP:0003161 | 4-Hydroxyphenylpyruvic aciduria | |
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| HP:0003231 | Tyrosinemia | |
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| HP:0004337 | Abnormality of amino acid metabolism | |
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| HP:0007812 | Herpetiform corneal ulcers | "The presence of one or more dendritic corneal epithelial ulcers characterized by a treelike branching linear pattern with feathery edges and terminal bulbs. Herpetiform corneal ulcers can be identified by fluorescein staining." [HPO:curators] |
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| HP:0007957 | Variable degree of corneal opacities | |
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