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Overview of Brain Cancer
Brain Tumor
Primary brain tumors, which start in the brain, and metastatic (secondary) brain tumors, which start with cancer cells
that have spread from another part of the body, are the two different forms of brain tumors. parts of the body.
Rarely does primary brain cancer cancer spread outside of the
central nervous system, and unchecked tumor development inside the skull's constrained space causes death.
brain cancerwith metastases is an advanced disease with a dismal prognosis.
Primary brain tumors can be cancerous or noncancerous. Both types take up space in the brain and may cause serious symptoms
(e.g., vision or hearing loss) and complications (e.g., stroke).Because of their aggressive and invasive character,
all malignant brain tumors are life-threatening. When critical structures, such as an artery, are threatened,
a non-cancerous primary brain tumor becomes life-threatening.
Incidence and Prevalence
In the United States, the annual incidence of brain cancer generally is 15β20 cases per 100,000 people. brain cancer is the leading cause of cancer-related death in patients younger than age 35.
Primary brain tumors account for 50% of intracranial tumors and secondary brain cancer accounts for the remaining cases. Approximately 17,000 people in the United States are diagnosed with primary cancer each year and nearly 13,000 die of the disease. The annual incidence of primary brain cancer in children is about 3 per 100,000.
Secondary brain cancer occurs in 20β30% of patients with metastatic disease and incidence increases with age. In the United States, about 100,000 cases of secondary brain cancer are diagnosed each year.