Spastic cerebral palsy accounts for about 70-90% of all people with cerebral palsy. Some severe cases can cause quadriplegia, in which the trunk and all four limbs are paralyzed, and the muscles controlling the mouth and tongue are also paralyzed.

Breast cancer initially grows only locally, then invades surrounding tissues and finally metastasizes to other organs. Breast cancer cells often metastasize to places such as bones, lungs, and brain.