Brainstem stroke syndrome
A brainstem stroke syndrome is a condition involving a stroke of the brainstem. Because of their location, they often involve impairment both of the cranial nuclei and of the long tracts. A person may have vertigo, dizziness and severe imbalance without the hallmark of most strokes – weakness on one side of the body. The symptoms of vertigo, dizziness or imbalance usually occur together; dizziness alone is not a sign of stroke. Brainstem stroke can also cause diplopia, slurred speech and decreased level of consciousness. A more serious outcome is locked-in syndrome.