| 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:0000597 | Ophthalmoparesis | "Ophthalmoplegia is a paralysis or weakness of one or more of the muscles that control eye movement." [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:0000643 | Blepharospasm | "An involuntary recurrent spasm of both eyelids." [HPO:curators] |
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| HP:0000726 | Dementia | |
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| HP:0001138 | Optic neuropathy | |
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| HP:0001152 | Saccadic smooth pursuit | |
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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:0001260 | Dysarthria | "Dysarthric speech is a general description referring to a neurological speech disorder characterized by poor articulation. Depending on the involved neurological structures, dysarthria may be further classified as spastic, flaccid, ataxic, hyperkinetic and hypokinetic, or mixed." [HPO:curators] |
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| HP:0001265 | Hyporeflexia | |
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| HP:0001266 | Choreoathetosis | |
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| HP:0001310 | Dysmetria | |
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| HP:0001336 | Myoclonus | "Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements." [HPO:curators] |
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| HP:0002066 | Gait ataxia | "Impairment of the ability to coordinate the movements required for normal walking." [HPO:curators] |
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| HP:0002070 | Limb ataxia | |
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| HP:0002072 | Chorea | "Chorea (Greek for dance ) refers to widespread arrhythmic involuntary movements of a forcible, jerky and restless fashion." [HPO:curators] |
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| HP:0002073 | Progressive cerebellar ataxia | |
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| HP:0002075 | Dysdiadochokinesis | "An inability to perform rapidly alternating movements, such as rhythmically tapping the fingers on the knee, generally related to a cerebellar lesion." [HPO:curators] |
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| HP:0002078 | Truncal ataxia | |
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| HP:0002345 | Action tremor | "A tremor present when the limbs are active, either when outstretched in a certain position or throughout a voluntary movement." [HPO:curators] |
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| HP:0002354 | Memory impairment | |
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| HP:0003743 | Genetic anticipation | |
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| HP:0007047 | Atrophy of the dentate nucleus | |
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| HP:0007256 | Mild pyramidal signs | |
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| HP:0010831 | Impaired proprioception | "A loss or impairment of the sensation of the relative position of parts of the body and joint position." [HPO:probinson] |
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| HP:0010867 | Dyssynergia | "A type of `ataxia` (HP:0001251) characterized by the impairment of the ability to smoothly perform the elements of a voluntary movement in the appropriate order and speed. With dyssynergia, a voluntary movement appears broken down into its component parts." [HPO:probinson] |
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| HP:0010878 | Fetal cystic hygroma | "The presence during the prenatal period of a cystic mass with multiple septa with multiple, asymmetric, thin-walled cysts near the posterior aspect of the neck. Fetal cystic hygroma can be defined as nuchal translucency with or without septations measuring greater than 3.0 mm." [emedicine:402757, HPO:probinson] |
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| HP:0012048 | Oromandibular dystonia | "A kind of focal dystonia characterized by forceful contractions of the face, jaw, and/or tongue causing difficulty in opening and closing the mouth and often affecting chewing and speech." [HPO:probinson] |
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| HP:0030890 | Hyperintensity of cerebral white matter on MRI | "A brighter than expected signal on magnetic resonance imaging emanating from the cerebral white matter." [PMID:15576652] |
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