From HPO
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.
Tonic seizure- MedGen UID:
- 82855
- •Concept ID:
- C0270844
- •
- Disease or Syndrome
A tonic seizure is a type of motor seizure characterized by unilateral or bilateral limb stiffening or elevation, often with neck stiffening.
Hypoplasia of the corpus callosum- MedGen UID:
- 138005
- •Concept ID:
- C0344482
- •
- Congenital Abnormality
Underdevelopment of the corpus callosum.
Epileptic encephalopathy- MedGen UID:
- 452596
- •Concept ID:
- C0543888
- •
- Disease or Syndrome
A condition in which epileptiform abnormalities are believed to contribute to the progressive disturbance in cerebral function. Epileptic encephalaopathy is characterized by (1) electrographic EEG paroxysmal activity that is often aggressive, (2) seizures that are usually multiform and intractable, (3) cognitive, behavioral and neurological deficits that may be relentless, and (4) sometimes early death.
Global developmental delay- MedGen UID:
- 107838
- •Concept ID:
- C0557874
- •
- Finding
A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.
Atypical absence seizure- MedGen UID:
- 108888
- •Concept ID:
- C0595948
- •
- Disease or Syndrome
An atypical absence seizure is a type of generalized non-motor (absence) seizure characterized by interruption of ongoing activities and reduced responsiveness. In comparison to a typical absence seizure, changes in tone may be more pronounced, onset and/or cessation may be less abrupt, and the duration of the ictus and post-ictal recovery may be longer. Although not always available, an EEG often demonstrates slow (<3 Hz), irregular, generalized spike-wave activity.
Hypsarrhythmia- MedGen UID:
- 195766
- •Concept ID:
- C0684276
- •
- Finding
Hypsarrhythmia is abnormal interictal high amplitude waves and a background of irregular spikes. There is continuous (during wakefulness), high-amplitude (>200 Hz), generalized polymorphic slowing with no organized background and multifocal spikes demonstrated by electroencephalography (EEG).
Epileptic spasm- MedGen UID:
- 315948
- •Concept ID:
- C1527366
- •
- Disease or Syndrome
A sudden flexion, extension, or mixed extension-flexion of predominantly proximal and truncal muscles that is usually more sustained than a myoclonic movement but not as sustained as a tonic seizure. Limited forms may occur
Developmental regression- MedGen UID:
- 324613
- •Concept ID:
- C1836830
- •
- Disease or Syndrome
Loss of developmental skills, as manifested by loss of developmental milestones.
Profound global developmental delay- MedGen UID:
- 766364
- •Concept ID:
- C3553450
- •
- Disease or Syndrome
A profound delay in the achievement of motor or mental milestones in the domains of development of a child.
Generalized myoclonic seizure- MedGen UID:
- 892704
- •Concept ID:
- C4021759
- •
- Disease or Syndrome
A generalized myoclonic seizure is a type of generalized motor seizure characterized by bilateral, sudden, brief (<100 ms) involuntary single or multiple contraction of muscles or muscle groups of variable topography (axial, proximal limb, distal). Myoclonus is less regularly repetitive and less sustained than is clonus.
Thin corpus callosum- MedGen UID:
- 1785336
- •Concept ID:
- C5441562
- •
- Anatomical Abnormality
An abnormally thin corpus callous, due to atrophy, hypoplasia or agenesis. This term is intended to be used in situations where it is not known if thinning of the corpus callosum (for instance, as visualized by magnetic resonance tomography) is due to abnormal development (e.g. a leukodystrophy) or atrophy following normal development (e.g. neurodegeneration).
Reduced cerebral white matter volume- MedGen UID:
- 1815057
- •Concept ID:
- C5706151
- •
- Finding
An abnormally low volume of the white matter of the brain.
Hypotonia- MedGen UID:
- 10133
- •Concept ID:
- C0026827
- •
- Finding
Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.
Staring gaze- MedGen UID:
- 816157
- •Concept ID:
- C3809827
- •
- Finding
An abnormality in which the eyes are held permanently wide open.
- Abnormality of the eye
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system