From HPO
Dystonic disorder- MedGen UID:
- 3940
- •Concept ID:
- C0013421
- •
- Sign or Symptom
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.
Babinski sign- MedGen UID:
- 19708
- •Concept ID:
- C0034935
- •
- Finding
Upturning of the big toe (and sometimes fanning of the other toes) in response to stimulation of the sole of the foot. If the Babinski sign is present it can indicate damage to the corticospinal tract.
Tremor- MedGen UID:
- 21635
- •Concept ID:
- C0040822
- •
- Sign or Symptom
An unintentional, oscillating to-and-fro muscle movement about a joint axis.
Lewy bodies- MedGen UID:
- 43126
- •Concept ID:
- C0085200
- •
- Cell Component
Intracytoplasmic, eosinophilic, round to elongated inclusions found in vacuoles of injured or fragmented neurons. The presence of Lewy bodies is the histological marker of the degenerative changes in LEWY BODY DISEASE and PARKINSON DISEASE but they may be seen in other neurological conditions. They are typically found in the substantia nigra and locus coeruleus but they are also seen in the basal forebrain, hypothalamic nuclei, and neocortex.
Hypokinesia- MedGen UID:
- 39223
- •Concept ID:
- C0086439
- •
- Finding
Abnormally diminished motor activity. In contrast to paralysis, hypokinesia is not characterized by a lack of motor strength, but rather by a poverty of movement. The typical habitual movements (e.g., folding the arms, crossing the legs) are reduced in frequency.
Hyperreflexia- MedGen UID:
- 57738
- •Concept ID:
- C0151889
- •
- Finding
Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.
Shuffling gait- MedGen UID:
- 68545
- •Concept ID:
- C0231688
- •
- Finding
A type of gait (walking) characterized by by dragging one's feet along or without lifting the feet fully from the ground.
Bradykinesia- MedGen UID:
- 115925
- •Concept ID:
- C0233565
- •
- Sign or Symptom
Bradykinesia literally means slow movement, and is used clinically to denote a slowness in the execution of movement (in contrast to hypokinesia, which is used to refer to slowness in the initiation of movement).
Postural tremor- MedGen UID:
- 66696
- •Concept ID:
- C0234378
- •
- Sign or Symptom
A type of tremors that is triggered by holding a limb in a fixed position.
Resting tremor- MedGen UID:
- 66697
- •Concept ID:
- C0234379
- •
- Sign or Symptom
A resting tremor occurs when muscles are at rest and becomes less noticeable or disappears when the affected muscles are moved. Resting tremors are often slow and coarse.
Cerebral atrophy- MedGen UID:
- 116012
- •Concept ID:
- C0235946
- •
- Disease or Syndrome
Atrophy (wasting, decrease in size of cells or tissue) affecting the cerebrum.
Parkinsonian disorder- MedGen UID:
- 66079
- •Concept ID:
- C0242422
- •
- Disease or Syndrome
Characteristic neurologic anomaly resulting from degeneration of dopamine-generating cells in the substantia nigra, a region of the midbrain, characterized clinically by shaking, rigidity, slowness of movement and difficulty with walking and gait.
Dementia- MedGen UID:
- 99229
- •Concept ID:
- C0497327
- •
- Mental or Behavioral Dysfunction
A loss of global cognitive ability of sufficient amount to interfere with normal social or occupational function. Dementia represents a loss of previously present cognitive abilities, generally in adults, and can affect memory, thinking, language, judgment, and behavior.
Gait disturbance- MedGen UID:
- 107895
- •Concept ID:
- C0575081
- •
- Finding
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.
Focal dystonia- MedGen UID:
- 149279
- •Concept ID:
- C0743332
- •
- Disease or Syndrome
A type of dystonia that is localized to a specific part of the body.
Pill-rolling tremor- MedGen UID:
- 199684
- •Concept ID:
- C0751564
- •
- Sign or Symptom
A type of resting tremor characterized by simultaneous rubbing movements of thumb and index fingers against each other.
Gait ataxia- MedGen UID:
- 155642
- •Concept ID:
- C0751837
- •
- Sign or Symptom
A type of ataxia characterized by the impairment of the ability to coordinate the movements required for normal walking. Gait ataxia is characteirzed by a wide-based staggering gait with a tendency to fall.
Loss of ambulation- MedGen UID:
- 332305
- •Concept ID:
- C1836843
- •
- Finding
Inability to walk in a person who previous had the ability to walk.
Postural instability- MedGen UID:
- 334529
- •Concept ID:
- C1843921
- •
- Finding
A tendency to fall or the inability to keep oneself from falling; imbalance. The retropulsion test is widely regarded as the gold standard to evaluate postural instability, Use of the retropulsion test includes a rapid balance perturbation in the backward direction, and the number of balance correcting steps (or total absence thereof) is used to rate the degree of postural instability. Healthy subjects correct such perturbations with either one or two large steps, or without taking any steps, hinging rapidly at the hips while swinging the arms forward as a counterweight. In patients with balance impairment, balance correcting steps are often too small, forcing patients to take more than two steps. Taking three or more steps is generally considered to be abnormal, and taking more than five steps is regarded as being clearly abnormal. Markedly affected patients continue to step backward without ever regaining their balance and must be caught by the examiner (this would be called true retropulsion). Even more severely affected patients fail to correct entirely, and fall backward like a pushed toy soldier, without taking any corrective steps.
Substantia nigra gliosis- MedGen UID:
- 337668
- •Concept ID:
- C1846865
- •
- Finding
Focal proliferation of glial cells in the substantia nigra.
Rigidity- MedGen UID:
- 7752
- •Concept ID:
- C0026837
- •
- Sign or Symptom
Continuous involuntary sustained muscle contraction. When an affected muscle is passively stretched, the degree of resistance remains constant regardless of the rate at which the muscle is stretched. This feature helps to distinguish rigidity from muscle spasticity.
Cogwheel rigidity- MedGen UID:
- 57469
- •Concept ID:
- C0151564
- •
- Sign or Symptom
A type of rigidity in which a muscle responds with cogwheellike jerks to the use of constant force in bending the limb (i.e., it gives way in little, repeated jerks when the muscle is passively stretched).
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system