It has been suggested that the nomenclature of corticobasal degeneration only be used for naming the disease after it has received verification through postmortem analysis of the neuropathology. CBS patients with greater temporoparietal degeneration are more likely to have AD pathology as opposed to frontotemporal lobar degeneration. Treatment
Because the exact cause of CBD is unknown, there exists no formal treatment for the disease. Instead, treatments focus on minimizing the appearance or effect of the symptoms resulting from CBD. The most easily treatable symptom of CBD is parkinsonism, and the most common form of treatment for this symptom is the application of dopaminergic drugs. However, in general only moderate improvement is seen and the relief from the symptom is not long-lasting. In addition, palliative therapies, including the implementation of wheelchairs, speech therapy, and feeding techniques, are often used to alleviate many of the symptoms that show no improvement with drug administration.There is no consensus on what causes CBD and so most of the treatment goes in helping symptoms. Many treatments have low success rates or have not been tested thoroughly or produced frequently. For example, in relation to the motor aspect of disability, CBD has a high resistance against treatments to help the dopamine intake like levodopa. A number of studies have reported no real levels of improvement based with the use of similar drugs/dopaminergic agonists. Because of the brains levels of inhibition, some medications have focused on creating an inhibition that would negate the effect.
71% had bradykinesia (slow movements), 64% showed apraxia, 43% reported limb dystonia, and although more cognitive 36% had dementia. In another study of 36, over half had a useless/alien arm and 27% had a gait impediment[21]. From this, we can see why CBD is hard to diagnose. Even if it can be distinguished as different from one of the other similar diseases, the varying combinations of symptoms create a difficult path to diagnosis. Motor and associated cortical dysfunctions
Some of the most prevalent symptom types in people exhibiting CBD pertain to identifiable movement disorders and problems with cortical processing. These symptoms are initial indicators of the presence of the disease. Each of the associated movement complications typically appears asymmetrically and the symptoms are not observed uniformly throughout the body. For example, a person exhibiting an alien hand syndrome (explained later) in one hand, will not correspondingly display the same symptom in the other hand. Predominant movement disorders and cortical dysfunctions associated with CBD include:
Parkinsonism
Alien hand syndrome
Apraxia (ideomotor apraxia and limb-kinetic apraxia)
Aphasia

Parkinsonism
The presence of parkinsonism as a clinical symptom of CBD is largely responsible for complications in developing unique diagnostic criteria for the disease. Other such diseases in which parkinsonism forms an integral diagnostic characteristic are Parkinsons disease (PD) and progressive supranuclear palsy (PSP). Parkinsonism in CBD is largely present in an extremity such as the arm, and is always asymmetric. It has been suggested that non-dominant arm is involved more often.