Cancer
Brain Cancer
About Brain Cancer
Brain cancer is a condition where abnormal cells grow in the brain, forming a tumor. These tumors can be malignant (cancerous) or benign (non-cancerous), but even benign tumors can cause significant health problems due to their location within the skull.
Common Symptoms
- Headaches (often severe or persistent)
- Seizures
- Nausea and vomiting
- Changes in vision or hearing
- Difficulty with balance or walking
- Weakness or numbness on one side of the body
- Confusion or disorientation
- Memory problems
- Personality or behavior changes
- Sudden onset of speech difficulties
Diagnosis
Diagnosis typically involves a neurological exam, followed by imaging tests such as an MRI or CT scan of the brain. A definitive diagnosis usually requires a biopsy, where a small sample of the tumor is removed and examined under a microscope.
Causes
The exact causes of most brain cancers are not fully understood. Some risk factors may include exposure to high doses of radiation and certain genetic conditions, but for many, there is no clear identifiable cause.
Treatment Overview
Conventional treatments for brain cancer commonly include surgery to remove as much of the tumor as possible, radiation therapy, and chemotherapy. Other approaches described in the context of brain cancer may include targeted therapy or immunotherapy. The specific treatment plan depends on factors like the type, size, and location of the tumor, as well as the individual's overall health.
Prognosis & Outlook
The prognosis for brain cancer can vary widely depending on the type and grade of the tumor, its location, and the individual's response to treatment. While some brain cancers are highly aggressive, advances in treatment may offer improved outcomes for many individuals.
Types & Variants
Glioblastoma
An aggressive type of cancerous tumor that can occur in the brain or spinal cord. It forms from cells called astrocytes that support nerve cells.
Meningioma
A tumor that arises from the meninges — the membranes that surround your brain and spinal cord. Most meningiomas are noncancerous (benign).
Astrocytoma
A type of glioma that can form in the brain or spinal cord. It begins in cells called astrocytes and can range from slow-growing to aggressive.
Medulloblastoma
A cancerous brain tumor that starts in the lower back part of the brain, the cerebellum. These tumors are most common in children.
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