What is the difference between a intracerebral hematoma and subdural hematoma?

An intracerebral hematoma is a collection of blood from bleeding within the brain whereas a subdural hematoma is a collection of blood from bleeding outside the brain. The brain is covered by a membrane called the meninges which consists of three layers. The outermost layer is the dura mater, the middle layer is the arachnoid mater while the innermost layer which is adjacent to the outer surface of the brain is the pia mater. A subdural hematoma is therefore more specifically a collection of blood between the dura and arachnoid layers.