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Reversible Impairment in Cognition and Midbrain Hematoma

A 78–year–old man presented with a 2–week history of cognitive decline. Computed tomography (CT) showed obstructive hydrocephalus due to a small midbrain hematoma. He regained premorbid neurological status after ventriculostomy. Spontaneous midbrain hemorrhage is a rare cause of cognitive decline that can be diagnosed by CT and treated by shunting.