section_path: Signs and symptoms/Subtypes
section_name: Subtypes
paragraph_text: Subtypes
  
  If the area of the brain affected includes one of the three prominent central nervous system pathways —the spinothalamic tract, corticospinal tract, and the dorsal column–medial lemniscus pathway, symptoms may include:
  
  In most cases, the symptoms affect only one side of the body (unilateral). The defect in the brain is usually on the opposite side of the body. However, since these pathways also travel in the spinal cord and any lesion there can also produce these symptoms, the presence of any one of these symptoms does not necessarily indicate stroke. In addition to the above central nervous system pathways, the brainstem gives rise to most of the twelve cranial nerves. A brainstem stroke affecting the brainstem and brain, therefore, can produce symptoms relating to deficits in these cranial nerves:
  
  If the cerebral cortex is involved, the central nervous system pathways can again be affected, but can also produce the following symptoms:
  
  If the cerebellum is involved, ataxia might be present and this includes: