Progressive Supranuclear Palsy (PSP) or Steele- Richardson � Olszewski Syndrome is a neurodegenerative condition affecting brainstem and basal ganglia. Often misdiagnosed as Parkinson�s Disease. It is characterized by supranuclear ophthalmoplegia, pseudobulbar palsy, axial rigidity and mild dementia. Diagnosis is usually clinical and treatment is usually supportive.