From HPO
Cerebellar ataxia- MedGen UID:
- 849
- •Concept ID:
- C0007758
- •
- Disease or Syndrome
Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).
Dysarthria- MedGen UID:
- 8510
- •Concept ID:
- C0013362
- •
- Mental or Behavioral Dysfunction
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.
Seizure- MedGen UID:
- 20693
- •Concept ID:
- C0036572
- •
- Sign or Symptom
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.
Cavitating leukodystrophy- MedGen UID:
- 542952
- •Concept ID:
- C0270725
- •
- Disease or Syndrome
A type of leukodystrophy characterized by multiple small cavitations typically in the periventricular and deep cerebral white matter. The cavitations are visible as a central cavity with cerebrospinal fluid-like signal intensity.
Delayed speech and language development- MedGen UID:
- 105318
- •Concept ID:
- C0454644
- •
- Finding
A degree of language development that is significantly below the norm for a child of a specified age.
Spastic tetraparesis- MedGen UID:
- 658719
- •Concept ID:
- C0575059
- •
- Disease or Syndrome
Spastic weakness affecting all four limbs.
Sensorimotor neuropathy- MedGen UID:
- 207266
- •Concept ID:
- C1112256
- •
- Disease or Syndrome
Developmental regression- MedGen UID:
- 324613
- •Concept ID:
- C1836830
- •
- Disease or Syndrome
Loss of developmental skills, as manifested by loss of developmental milestones.
Intellectual disability- MedGen UID:
- 811461
- •Concept ID:
- C3714756
- •
- Mental or Behavioral Dysfunction
Intellectual disability, previously referred to as mental retardation, is characterized by subnormal intellectual functioning that occurs during the developmental period. It is defined by an IQ score below 70.
Cytochrome C oxidase-negative muscle fibers- MedGen UID:
- 867360
- •Concept ID:
- C4021724
- •
- Finding
An abnormally reduced activity of the enzyme cytochrome C oxidase in muscle tissue.
Decreased activity of mitochondrial complex IV- MedGen UID:
- 866520
- •Concept ID:
- C4020800
- •
- Finding
A reduction in the activity of the mitochondrial respiratory chain complex IV, which is part of the electron transport chain in mitochondria.
- Abnormal cellular phenotype
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system