Subdural collections cross sutures but is restricted by the dural attachments. Epidural hematoma may cross dural attachments. What is the relationship between subdural collections and epidural hematoma?
1) Subdural collections and epidural hematoma have no relationship
2) Subdural collections and epidural hematoma are both restricted by dural attachments
3) Subdural collections can cross dural attachments but epidural hematoma cannot
4) Epidural hematoma can cross dural attachments but subdural collections cannot