New! Sign up for our free email newsletter.
Reference Terms
from Wikipedia, the free encyclopedia

Brain tumor

A brain tumor is any intracranial mass created by an abnormal and uncontrolled growth of cells either normally found in the brain itself: neurons, glial cells (astrocytes, oligodendrocytes, ependymal cells), lymphatic tissue, blood vessels), in the cranial nerves (myelin producing Schwann cells), in the brain envelopes (meninges), skull, pituitary and pineal gland, or spread from cancers primarily located in other organs (metastatic tumors).

Note:   The above text is excerpted from the Wikipedia article "Brain tumor", which has been released under the GNU Free Documentation License.
Related Stories
 


Health & Medicine News

June 5, 2025

Long considered a disease brought to the Americas by European colonizers, leprosy may actually have a much older history on the American continent. Scientists reveal that a recently identified second species of bacteria responsible for leprosy, ...
Mice genetically engineered to lack the amino acid cysteine, and fed a cysteine-free diet, lost 30 percent of their body weight in a ...
A study shows a non-opioid pain reliever blocks pain at its source -- calming specific nerve signals that send pain messages to the brain. In mice, the compound SBI-810 eased pain from surgery, bone fractures, and nerve injury without causing ...
An international genomics study has revealed that early Asians undertook humanity's longest known prehistoric migration. These early humans, who roamed the earth over 100,000 years ago, are believed ...

Latest Headlines

updated 12:56 pm ET