Final answer:
A subdural hemorrhage is a bleeding that occurs between the layers of the dura mater, causing compression of the brain. The CT finding of a subdural hemorrhage is a crescent-shaped area of high density near the brain's surface. Treatment for a subdural hemorrhage depends on the severity and may involve surgical intervention.
Step-by-step explanation:
A subdural hemorrhage is a type of bleeding that occurs between the layers of the dura mater, which is the protective covering of the brain. On a CT scan, the finding of a subdural hemorrhage appears as a crescent-shaped area of high density near the surface of the brain. The hemorrhage can cause compression of the brain and displacement of nearby structures, such as the lateral ventricles.
The treatment for a subdural hemorrhage depends on the severity of the bleeding and the symptoms it is causing. In mild cases, observation and supportive care may be sufficient. However, in more severe cases, surgical intervention may be necessary to drain the accumulated blood and relieve pressure on the brain.