Facts and Statistics
Brain Tumors do not discriminate. Primary brain tumors - those that begin in the brain and tent to stay in the brain - occur in people of all ages, but they are statistically more frequent in children and older adults. Metastatic brain tumors - those that begin as a cancer elsewhere in the body and spread to the brain - are more common in adults than children.
Brain tumors are the:
- Second leading cause of cancer-related deaths in children (males and females) under age 20 (leukemia is the first).
- Second leading cause of cancer-related deaths in males ages 20-39 (leukemia is the first).
- Fifth leading cause of cancer-related deaths in females ages 20-39.
The facts and statistics here include brain and central nervous system tumors (including spinal cord, pituitary and pineal gland tumors).
An estimated 66,290 new cases of primary brain tumors are expected to be diagnosed in 2012 and includes both malignant (24,070) and non-malignant (40,470) brain tumors.
In 2012, approximately 4,200 children younger than age 20 will be diagnosed with primary brain tumors, of which 3,020 will be under age 15.
It is estimated that during the year 2004 more than 612,000 people in the United States were living with the diagnosis of a primary brain or central nervous system tumor. Specifically, more than 124,000 persons were living with a malignant tumor and more than 488,000 persons were living with a non-malignant tumor.
For every 100,000 people in the United States, approximately 209 are living following the diagnosis of a brain tumor. This represents a prevalence rate of 209.0 per 100,000 persons.
· Meningiomas represent 34% of all primary brain tumors, making them the most common primary brain tumor.
· Gliomas, a broad term which includes all tumors arising from the gluey or supportive tissue of the brain, represent 30% of all brain tumors and 80% of all malignant tumors.
· Glioblastomas represent 17% of all primary brain tumors, and 54% of all gliomas.
· Astrocytomas represent 7% of all primary brain tumors.
· Astrocytomas and glioblastomas combined represent 76% of all gliomas.
· Nerve sheath tumors (such as acoustic neuromas) represent about 9% of all primary brain tumors.
· Pituitary tumors represent 13% of all primary brain tumors.
· Lymphomas represent 2% of all primary brain tumors.
· Oligodendrogliomas represent 2% of all primary brain tumors.
· Medulloblastomas/embryonal/primitive tumors represent 1% of all primary brain tumors.
· The majority of primary tumors (34%) are located within the meninges, followed by those located within the frontal, temporal, parietal and occipital lobes of the brain (22%).
Metastatic brain tumors are the most common brain tumor. Although statistics for brain metastases are not readily available, it is estimated that there are more metastatic than primary malignant brain tumors per year.
The cancers that most commonly metastasize to the brain are lung and breast.
(The above facts and statistics were found on the website of the American Brain Tumor Association.)