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Primary lateral sclerosis (PLS) usually presents with gradual-onset, progressive, lower-extremity stiffness and pain due to muscle spasticity. Onset is often asymmetrical. [ 2 ] Although the muscles do not appear to atrophy as in ALS (at least initially), the disabling aspect of PLS is muscle spasticity and cramping, and intense pain when those ...
It is thought to be caused by the inability to switch on and switch off antagonising muscle groups in a coordinated fashion due to hypotonia, secondary to the central lesion. [7] Dysdiadochokinesia is also seen in Friedreich's ataxia and multiple sclerosis, as a cerebellar symptom (including ataxia, intention tremor and dysarthria). It is also ...
A lower motor neuron lesion is a lesion which affects nerve fibers traveling from the lower motor neuron(s) in the anterior horn/anterior grey column of the spinal cord, or in the motor nuclei of the cranial nerves, to the relevant muscle(s). [1]
The disorder causes muscle weakness, atrophy, and muscle spasms throughout the body due to the degeneration of the upper motor and lower motor neurons. Sensory nerves and the autonomic nervous system are generally unaffected, meaning the majority of people with ALS maintain hearing , sight , touch , smell , and taste .
Main symptoms of multiple sclerosis Symptoms and findings in multiple sclerosis. Multiple sclerosis can cause a variety of symptoms varying significantly in severity and progression among individuals: changes in sensation (hypoesthesia), muscle weakness, abnormal muscle spasms, or difficulty moving; difficulties with coordination and balance; problems in speech or swallowing (), visual ...
Typical lesions are similar to those of MS, but there are four kinds of atypical inflammatory demyelinating lesions: Ring-like (antibody-mediated), megacystic (tumefactive), Balo-like, and diffusely-infiltrating lesions. [6] The list of the diseases that produce CNS demyelinating lesions is not complete, but it includes:
The specific symptoms depend on the locations of the lesions within the nervous system, and may include focal loss of sensitivity or changes in sensation in the limbs, such as feeling tingling, pins and needles, or numbness; limb motor weakness/pain, blurred vision, [29] pronounced reflexes, muscle spasms, difficulty with ambulation (walking ...
Dysmetria (English: wrong length) is a lack of coordination of movement typified by the undershoot or overshoot of intended position with the hand, arm, leg, or eye. It is a type of ataxia. It can also include an inability to judge distance or scale.