Early-onset cerebellar ataxia with retained tendon reflexes is a rare neurological disorder characterized by progressive difficulty with coordination and balance due to damage to the cerebellum, the part of the brain that controls movement. It is usually diagnosed in childhood and is characterized by difficulty with walking, speaking, and other motor skills. Despite the damage to the cerebellum, the tendon reflexes remain intact, meaning that the reflexes are still present and functioning normally.

The symptoms of Early-onset cerebellar Ataxia with retained tendon reflexes include:

-Gait Ataxia (unsteady, uncoordinated walking)
-Limb Ataxia (uncoordinated movements of the arms and legs)
-Dysarthria (slurred speech)
-Dysmetria (inability to accurately judge the distance of an object)
-Dysdiadochokinesia (inability to rapidly alternate movements)
-Intention tremor (shaking of the hands when reaching for an object)
-Nystagmus (involuntary eye movements)
-Retained tendon reflexes (normal reflexes when tested with a reflex hammer)

The causes of Early-onset cerebellar ataxia with retained tendon reflexes can vary, but some of the most common causes include:

1. Genetic mutations: Certain genetic mutations can cause Early-onset cerebellar ataxia with retained tendon reflexes. These mutations can be inherited or acquired.

2. Autoimmune disorders: Autoimmune disorders such as multiple sclerosis, lupus, and rheumatoid arthritis can cause Early-onset cerebellar ataxia with retained tendon reflexes.

3. Infections: Certain infections, such as Lyme disease, can cause Early-onset cerebellar ataxia with retained tendon reflexes.

4. Tumors: Tumors in the brain or spinal cord can cause Early-onset cerebellar ataxia with retained

Treatments for Early-onset cerebellar ataxia with retained tendon reflexes vary depending on the underlying cause. Treatment may include physical therapy, occupational therapy, speech therapy, medications, and/or surgery. Physical therapy can help improve balance, coordination, and strength. Occupational therapy can help with activities of daily living, such as dressing, eating, and writing. Speech therapy can help with communication and swallowing difficulties. Medications may be prescribed to help with symptoms such as tremor, muscle spasms, and fatigue. Surgery may be recommended to correct any structural abnormalities in the brain or spinal cord.

1. Genetic mutations: Early-onset cerebellar ataxia with retained tendon reflexes is caused by genetic mutations in the genes SACS, PNKD, and SCA17.

2. Family history: Having a family history of the condition increases the risk of developing Early-onset cerebellar ataxia with retained tendon reflexes.

3. Age: The condition is more common in children and young adults.

4. Gender: Males are more likely to develop Early-onset cerebellar ataxia with retained tendon reflexes than females.

At this time, there is no known cure for Early-onset cerebellar ataxia with retained tendon reflexes. However, medications may be prescribed to help manage symptoms, such as muscle relaxants, anticonvulsants, and medications to help with balance and coordination. Physical and occupational therapy may also be recommended to help improve coordination and balance.