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 subdural hematoma occurs when a blood vessel near the surface of the brain bursts. Blood builds up between the brain and the brain's tough outer lining. The condition is also called a subdural hemorrhage. In a subdural hematoma, blood collects immediately beneath the dura mater. The dura mater is the outermost layer of the meninges.
An ecchymosis is a bruise. A hematoma is a blood clot. A Hematoma is a collection of clotted blood outside a blood vessel. A Ecchymosis(commonly called a bruise) is blood leaked out from a blood vessel under the skin. Hematomas are swellings and has more of a three dimensional character to it, while ecchymoses are flat. As well, hematomas may occur in any organ and not just under the skin like ecchymoses.