Brain Tumors
What is a Brain Tumour?
What is a Brain Tumour?
- A brain tumour is a mass of abnormal cells within or around the structure of the brain.
- A brain tumour can be benign or malignant, and can be primary or secondary.
The difference between Primary and Secondary Brain Tumours:
| Primary Brain Tumours | Secondary Brain Tumours (or Metastatic) |
| Originated from cells within the brain.
Primary brain tumours stay within the brain or spinal cord. |
Originated from cells from somewhere else in the body.
Common for other cancers to move, i.e. breast, lung, melanoma, etc. |
The difference between Non-Malignant (Benign) and Malignant Brain Tumours :
| Non-Malignant (Benign) Brain | Malignant Brain Tumours |
| WHO* Grade 1 or 2
Slow growing Well defined borders Does not invade surrounding tissue |
WHO* Grade 3 or 4
Fast growing Poorly defined borders Can invade surrounding tissue and structures |
You can learn about how a brain tumour is diagnosed here.
Information taken from https://www.braintumour.ca/1654/what-is-a-brain-tumour
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