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:0000508 | Ptosis | "Drooping of the eyelid." [HPO:curators] |
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HP:0000625 | Eyelid, cleft | "A short discontinuity of the margin of the lower or upper eyelid." [pmid:19125427] |
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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:0001257 | Spasticity | "A motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with increased muscle tone, exaggerated (hyperexcitable) tendon reflexes." [HPO:curators] |
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HP:0001258 | Spastic paraplegia | |
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HP:0001298 | Encephalopathy | |
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HP:0001332 | Dystonia | "An abnormally increased muscular tone that causes fixed abnormal postures. There is a slow, intermittent twisting motion that leads to exaggerated turning and posture of the extremities and trunk." [HPO:curators] |
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HP:0001357 | Plagiocephaly | "An asymmetric head shape often resulting from premature closure of only one of the coronal sutures." [HPO:curators] |
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HP:0002059 | Cerebral atrophy | |
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HP:0002132 | Porencephaly | |
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HP:0002135 | Basal ganglia calcification | "Calcification affecting one or more structures of the basal ganglia." [HPO:curators] |
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HP:0002139 | Arrhinencephaly | |
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HP:0002187 | Mental retardation, profound | "Severe mental retardation is defined as an intelligence quotient (IQ) below 20." [HPO:curators] |
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HP:0003828 | Variable expressivity | |
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HP:0004374 | Hemiplegia/hemiparesis | "Loss of strength in the arm, leg, and sometimes face on one side of the body. Hemiplegia refers to a severe or complete loss of strength, whereas hemiparesis refers to a relatively mild loss of strength." [HPO:curators] |
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HP:0009704 | Chronic CSF lymphocytosis | "Chronic cerebrospinal fluid (CSF) lymphocytosis is defined as the finding, in at least two serial CSF examinations, of more than 5 cells per cubic millimeter." [HPO:curators] |
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