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  • Parietal Lobe: Just in front of the Occiptal Lobe. Deals with sensory functions.
  • PAVM: Direct connections between the arteries and veins in the lung.
  • PET scan: A scan that looks at function, rather than structure of an organ, including the brain.
  • Physical Therapist: A professional specialist in development of gross motor skills and physical activities.
  • Placebo: A substance or medicine given to the patient, which has no medical action but which may make the patient feel better, i.e., The Placebo Effect.
  • Port Wine Stain: Characteristic birthmark of SWS. Usually on the face, but can extend to other parts of the body, particularly the neck and trunk. A port wine stain by itself does not necessarily constitute SWS.
  • Prognosis: Predicted outcome.
  • Prophylactic: Preventative.
  • Pulmonary: Used to describe anything pertaining to the lungs.