Font Size

Brain Lesions (Lesions on the Brain) (cont.)

Brain Lesions Prognosis

Because of the many different types of brain lesions, the prognosis and outcomes of brain lesions are variable. However, with most brain lesion types, the more brain tissue that is damaged or killed by a brain lesion, the worse the prognosis is for the person. Fortunately, the reverse (little damage, good prognosis) is also generally true, but is mainly limited to lesions caused by mild trauma, strokes that affect a very small brain tissue area, a few rapidly treated infections, and occasionally, a few benign and malignant tumors that are effectively treated.

For some brain lesion types, the damage to some brain tissue is not reversible, so the prognosis may be only fair to good, as long as the person's problems do not progress. Another problem with prognosis is that some brain lesions may recur (for example, strokes and brain cancers), while others (genetic, immune, and plaque forming and brain cell death types exemplified by Huntington's disease, multiple sclerosis, Alzheimer's disease and Parkinson' disease) are simply progressive with no effective definitive cure available. The prognosis in the short term may be good if the symptoms respond to treatment, but the long term prognosis usually is considered to be, at best, fair to eventually poor (perhaps many years after the initial diagnosis), due to their progressive nature.

Medically reviewed by Joseph Carcione, DO; American board of Psychiatry and Neurology


"Preventing Stroke: What You Can Do." CDC. Updated Apr 30, 2015.

"Brain tumor - children." Reviewed Sept 4, 2015.

"NNDS Brain and Spinal Tumors Information Page." National Institute of Neurological Disorders and Stroke. Updated Jan 22, 2016.

"Can Alzheimer's Disease be Prevented? So, What Can You Do?" National Institute on Aging. Updated Jul 29, 2016.

Medically Reviewed by a Doctor on 10/24/2016
Medical Editor:

Must Read Articles Related to Brain Lesions (Lesions on the Brain)

Alzheimer's Disease
Alzheimer Disease Alzheimer's disease (AZ) is the most common cause of dementi...learn more >>
Alzheimer's Disease Facts
Alzheimer's Disease FAQs Alzheimer's disease is a fatal brain disorder. Familial and sporadic are the two types of learn more >>
Alzheimer's Disease Symptoms
Alzheimer's Disease Stages: Symptoms and Signs Alzheimer's disease is one of the many causes of learn more >>

Patient Comments & Reviews

The eMedicineHealth doctors ask about Brain Lesions (Lesions on the Brain):

Brain Lesions - Signs and Symptoms

What are the symptoms of your brain lesions?

Brain Lesions - Experience

Please describe your experience with a brain lesion.

Brain Lesions - Treatment

How Were Your Brain Lesions Treated?

Medical Dictionary