| 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:0000239 | Large fontanelles | "In newborns, the two frontal bones, two parietal bones, and one occipital bone are joined by fibrous sutures, which form a small posterior fontanelle, and a larger, diamond-shaped anterior fontanelle. These regions allow for the skull to pass the birth canal and for later growth. The fontanelles gradually ossify, whereby the posterior fontanelle usually closes by eight weeks and the anterior fontanelle by the 9th to 16th month of age. Large fontanelles are diagnosed if the fontanelles are larger than age-dependent norms." [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:0000496 | Abnormality of eye movement | "An abnormality in voluntary or involuntary eye movements or their control." [HPO:probinson] |
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| HP:0000737 | Irritability | |
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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:0001252 | Muscular hypotonia | "Muscular hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle), often involving reduced muscle strength. Hypotonia is characterized by a diminished resistance to passive stretching." [HPO:curators] |
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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:0001259 | Coma | |
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| HP:0001264 | Spastic diplegia | "Spasticity (neuromuscular hypertonia) primarily in the muscles of the legs, hips, and pelvis." [HPO:curators] |
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| HP:0001266 | Choreoathetosis | |
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| HP:0001288 | Gait disturbance | "The term gait disturbance can refer to any disruption of the ability to walk. In general, this can refer to neurological diseases but also fractures or other sources of pain that is triggered upon walking. However, in the current context gait disturbance refers to difficulty walking on the basis of a neurological or muscular disease." [HPO:curators] |
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| HP:0001290 | Generalized hypotonia | "Generalized muscular hypotonia (abnormally low muscle tone)." [HPO:curators] |
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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:0001373 | Joint dislocation | "Displacement or malalignment of joints." [HPO:curators] |
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| HP:0001508 | Failure to thrive | |
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| HP:0001942 | Metabolic acidosis | |
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| HP:0001943 | Hypoglycemia | "A lower than normal level of blood glucose." [HPO:curators] |
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| HP:0001946 | Ketosis | |
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| HP:0001999 | Facial dysmorphism | |
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| HP:0002013 | Vomiting | |
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| HP:0002047 | Malignant hyperthermia | "Malignant hyperthermia is characterized by a rapid increase in temperature to 39-42 degrees C in response to inhalational anesthetics such as halothane or to muscle relaxants such as succinylcholine." [HPO:curators] |
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| HP:0002063 | Rigidity | |
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| HP:0002071 | Extrapyramidal signs | |
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| HP:0002076 | Migraine | |
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| HP:0002167 | Neurological speech impairment | |
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| HP:0002170 | Intracranial hemorrhage | "A hemorrhage (bleeding) occuring within the skull." [HPO:curators] |
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| HP:0002179 | Opisthotonus | |
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| HP:0002240 | Hepatomegaly | "An abnormal enlargment of the liver." [HPO:curators] |
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| HP:0002301 | Hemiplegia | "Paralysis (complete loss of muscle function) in the arm, leg, and in some cases the face on one side of the body." [HPO:curators] |
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| HP:0002321 | Vertigo | "An abnormal sensation of spinning while the body is actually stationary." [HPO:curators] |
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| HP:0002376 | Developmental regression | |
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| HP:0002637 | Cerebral ischemia | |
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| HP:0002919 | Ketonuria | |
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| HP:0003150 | Glutaric aciduria | |
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| HP:0003530 | Glutaric acidemia | |
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| HP:0006873 | Symmetrical progressive demyelination | |
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| HP:0006956 | Dilation of lateral ventricles | |
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| HP:0007105 | Infantile encephalopathy | |
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| HP:0008046 | Abnormality of the retinal vasculature | |
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| HP:0008872 | Feeding problems in infancy | |
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| HP:0011220 | Prominent forehead | "Forward prominence of the entire forehead, due to protrusion of the frontal bone." [pmid:19125436] |
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| HP:0012448 | Delayed myelination | "`Delayed` (PATO:0000502) `myelination` (GO:0042552)." [ORCID:0000-0001-5208-3432] |
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| HP:0100543 | Cognitive impairment | "Abnormality in the process of thought including the ability to process information." [HPO:sdoelken] |
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| HP:0100660 | Dyskinesis | "A movement disorder which consists of effects including diminished voluntary movements and the presence of involuntary movements." [HPO:sdoelken] |
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