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Cerebellar degeneration is a condition in which cerebellar cells, otherwise known as neurons, become damaged and progressively weaken in the cerebellum. [1] There are two types of cerebellar degeneration; paraneoplastic cerebellar degeneration , and alcoholic or nutritional cerebellar degeneration. [ 2 ]
The cerebellar peduncles are three paired bundles of fibres that connect the cerebellum to the brain stem. [1] Superior cerebellar peduncle is a paired structure of white matter that connects the cerebellum to the mid-brain. Middle cerebellar peduncles connect the cerebellum to the pons and are composed entirely of centripetal fibers.
The symptoms of an ataxia vary with the specific type and with the individual patient. Many subtypes of spinocerebellar ataxia result in cases where an individual retains full mental capacity but progressively loses physical control, but nearly half of the identified subtypes result in cognitive dysfunction, dementia, and mental retardation.
The symptoms include poor balance and difficulty walking. Chronic cough and difficulty swallowing may also be present. Clinical findings include ataxia, sensory neuropathy, and absence of the vestibulo-ocular reflex. The syndrome was initially described in 2004. [1] In 2019, the cause was identified as biallelic pentanucleotide expansion in the ...
Usually, individuals with this condition have cerebellar ataxia, areflexia, high-arched feet, optic nerve wasting/degeneration, sensorineural deafness. [5]These symptoms have variable onset, but they generally begin episodically after having a fever-causing infection such as the common cold, manifesting mainly as sudden-onset ataxic episodes and encephalopathy.
The causes of CCAS lead to variations in symptoms, but a common core of symptoms can be seen regardless of etiology. Causes of CCAS include cerebellar agenesis, dysplasia and hypoplasia, cerebellar stroke, tumor, cerebellitis, trauma, and neurodegenerative diseases (such as progressive supranuclear palsy and multiple system atrophy).
SCA6 is typified by progressive and permanent cerebellar dysfunction. These cerebellar signs include ataxia and dysarthria, likely caused by cerebellar atrophy. Prior to diagnosis and the onset of major symptoms, patients often report a feeling of "wooziness" and momentary imbalance when turning corners or making rapid movements.
Cerebellar ataxia is a form of ataxia originating in the cerebellum. [1] Non-progressive congenital ataxia (NPCA) is a classical presentation of cerebral ataxias.. Cerebellar ataxia can occur as a result of many diseases and may present with symptoms of an inability to coordinate balance, gait, extremity and eye movements. [2]