Possible is a fictional character who appears in the animated television series Kim Possible. Created by Bob Schooley and Mark McCorkle, the character debuted in the show's pilot episode,  Crush , which premiered on the Disney Channel on June 7, 2002.
A Intermountain Healthcare answered. A craniotomy is a surgery to cut an opening in the skull and expose the brain. Here's what to expect: A neurosurgeon makes an incision through the skin and cuts out a small section of your skull, called a bone flap. The bone flap is removed to expose the brain underneath. The hematoma (a buildup of blood underneath the outer layer of the brain, from small veins that have been torn) is drained or removed. The bone flap is secured back in place, and the incision is closed back up with either sutures (stitches) or staples.
A subdural hematoma is usually the result of a serious head injury. When it occurs this way, it is called an acute subdural hematoma. Acute subdural hematomas are among the deadliest of all head injuries. The bleeding fills the brain area very rapidly, compressing brain tissue. This often results in brain injury and may lead to death. Subdural hematomas can also occur after a very minor head injury, especially in the elderly. These may go unnoticed for many days to weeks, and are called chronic subdural hematomas.