What does cerebellar lesion mean?

What does cerebellar lesion mean?

Cerebellar lesions are most often associated with the clinical findings of ataxia, which may affect the limbs, trunk, or even speech (producing a specific type of dysarthria known as scanning speech), dysequilibrium as manifested by a wide-based gait, and muscular hypotonia.

What causes lesions in the cerebellum?

Brain lesions can be caused by injury, infection, exposure to certain chemicals, problems with the immune system, and more. Typically, their cause is unknown.

What are the symptoms of cerebellar lesions?

Cerebellar dysfunction causes balance problems and gait disorders along with difficulties in coordination resulting in ataxia, uncoordinated movements, imbalance, speech problems(dysarthria), visual problems (nystagmus) and vertigo as a part of the vestibulocerebellar system.

Which of the signs and symptoms indicate cerebellar lesion?

Patients with cerebellar lesions are unable to execute rapid alternating movements properly. The examiner asks the patient to place the palm on the knee and then perform rapid alternate pronation and supination of the forearm. Affected individuals will have difficulty in executing such alternating movements.

How is cerebellar disease diagnosed?

Diagnosis of cerebellar disorders is clinical and includes a thorough family history and search for acquired systemic disorders. Neuroimaging, typically MRI, is done. Genetic testing is done if family history is suggestive.

How is cerebellar dysfunction diagnosed?

A CT scan or MRI of your brain might help determine potential causes. An MRI can sometimes show shrinkage of the cerebellum and other brain structures in people with ataxia. It may also show other treatable findings, such as a blood clot or benign tumor, that could be pressing on your cerebellum.

What are the effects of a cerebellar lesion?

Cerebellar lesions most often cause problems with movement and motor control. Movement complications occur on the same side the lesion is located in the brain.

What are lesions on the cerebellum called?

Cerebellar lesions are areas of tissue in the cerebellum that have been damaged by a traumatic brain injury or a disease. They typically cause problems with coordinated movement, vision, and cognitive functions. Lesions in the brain can be very small to quite large, and are often referred to as tumors.

How are lesions of the cerebellar vermis affect HR conditioning?

Lesions of the vermis again severely attenuated acquisition of this CR without affecting unconditioned responses to the CSs or UCS. Bilateral lesions of the cerebellar hemispheres did not affect HR conditioning in either test procedure.

What kind of brain tumor is in the cerebellar hemisphere?

Cerebellar astrocytomas constitute 12% of brain tumors in children. The tumor usually grows slowly in the cerebellar hemisphere and consists of a large cyst with a mural nodule. It may be in the hemisphere, the vermis, or both the hemisphere and vermis or may occupy the fourth ventricle.