Localising the lesion in a dizzy patient

Lesions in the following locations may result dizziness which is accompanied by characteristic clinical features:

• inner ear:
  • deafness
  • tinnitus
  • pain or fullness in the ear
  • discharge from the ear
    
    
• VIIIth nerve:
  • associated facial weakness
    
    
• cerebellopontine angle:
  • facial numbness
  • cerebellar incoordination
  • tinnitus
  • dysarthria
    
    
• brain stem:
  • other cranial nerve palsies
  • hemiparesis
  • hemisensory loss
  • impaired consciousness
    
    
• cerebellum:
  • incoordination
  • dysarthria
    
    
• cerebral cortex:
  • seizures
  • hallucinations in other modalities including olfaction and gustation