Dr. Achal Sharma, MBBS, MS (Gen. Surgery), M.Ch. (Neurosurgery), Professor, Neurosurgery, SMS Medical College, Jaipur, India
What are Brain and Spinal Cord Tumors?
A tumor is a mass of abnormal cells that either form into a new growth or the growth was there when someone born (congenital). Tumors occur when something goes wrong with genes that regulate cell growth, allowing cells to grow and divide out of control. Tumors can form anywhere in the body. Brain and spinal cord tumors form in the tissue inside the brain or spinal cord, which makes up the Central Nervous System (CNS). Depending on its type, a growing tumor may not cause any symptoms or can kill or displace healthy cells or disrupt their function. A tumor can also block the normal flow of activity in the brain or signaling to and from the brain. There are more than 120 types of brain and spinal cord tumors.
Tumors can be primary or secondary:
Primary tumors of the CNS are growths that begin in the brain or spinal cord. They can be either malignant or benign. Â
Metastatic tumors, or secondary tumors, of the CNS are caused by the cancer cells that break away from a primary tumor somewhere else in the body and spread to the CNS. They are more common than primary tumors of the CNS and occur more often in adults than in children.