cerebellar lesions

cerebellar lesions

- Table 1
Table 1: Characteristic limb effects of cerebellar lesions
CharacteristicMuscular effects
DyssynergyMuscular decomposition
Accessory muscles used to achieve voluntary movements
Wide arc movements and past pointing
Aesthenia
Hyporeflexia
DysrhythmiaAbnormal timing and coupling of voluntary movements
Abnormal timing and coupling of voluntary movements during gait
DysmetriaThe loss of ability to gauge distance and speed, and strength and velocity of voluntary movement
The loss of ability to gauge distance and speed, and strength and velocity of voluntary movement during gait
Abnormal gaitUncoordinated ataxic gait
Wide-based gait
Slow, jerky, irregular cadence
Variation of stride length and foot placement from step to step, often with loss of balance
'Double tap' foot sounds, where foot contact occurs audibly in two phases: heel strike and toe contact
Constant postural adjustment
References in periodicals archive ?
For example, Schmahmann described "cerebellar cognitive affective syndrome," which includes impairments in executive functions, visuospatial, and linguistic abilities, along with a large spectrum of affective symptoms ranging from depression and affective blunting to disinhibition and psychotic symptoms, in patients having cerebellar lesions (24).
Sixteen (20%) patients in the MS group had midbrain lesions, 39 (49%) had pontine lesions, 18 (23%) had medullary lesions, 52 (66%) had periventricular lesions, 29 (37%) had juxtacortical lesions, and 14 (18%) had cerebellar lesions.
A study of primary portine, cerebellar lesions with observations on pathogenesis.
A study in humans showed that cerebellar lesions are associated with a decrease in the activity of the amygdala as well as of the cingulated gyrus (18).
In this case, the clinical signs observed were characteristic of cerebellar lesions (WASHBURN & STREETER, 2004).
Multiple lesions were seen in 10 patients; in 2, a single lesion was seen in the centrum semi-ovale, and bilateral cerebellar lesions were seen in 1.
In our patients lateral focal cerebellar lesions induce ipsilateral signs, although expanding lesions may produce a false localization of clinical signs Amarenco (1995).
Cerebellar lesions involving the floccular region also reduce or eliminate OKNe towards the side of the lesion.
Consequences of cerebellar lesions at early and later ages: clinical relevance of animal experiments.
Keywords: Neurosarcoidosis, Cerebellar lesions, Magnetic Resonance Imaging.
Brain magnetic resonance imaging (MRI) showed T1-low and T2-high bulbopontine and cerebellar lesions around the fourth ventricle (Figure).