Hematoma

The collection of blood in tissues or a space following rupture of a blood vessel.  Regarding Brain:   Epidural - Outside the brain and its fibrous covering, the dura, but under the skull.  Subdural - Between the brain and its fibrous covering (dura).  Intracerebral - In the brain tissue.  Subarachnoid - Around the surfaces of the brain, between the dura and arachnoid membranes.