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Subdural Hematoma


Blood clot that occurs on the surface of the brain and just below the dura (covering of the brain);  usually occurs from the tear of one of the veins that drain the brain of blood. Subdural hematomas can be either acute (after a recent injury), or chronic (after an old, even minor or trivial) head injury. Chronic subdural hematomas can be managed with close observation or if the blood clot is sizable, with drainage via burr holes. Acute subdural hematomas usually require an open craniotomy to evacuate the blood clot.