Multiple Sclerosis (MS) Glossary

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Glossary - Pi - Pz

  • pleural effusion - abnormal accumulation of fluid between the layers of the membrane that lines the lungs and chest cavity
  • pneumonia - an infection of the lung characterized by inflammation; usually caused by a pathogen such as a bacteria or virus
  • pneumothorax - abnormal accumulation of air or gas in the pleural space (the space surrounding the lungs)
  • polyuria - excessive urine production; usually pale and dilute; often a symptom of diabetes
  • postural hypotension - sudden decrease in blood pressure upon standing, usually causing temporary dizziness or blackout
  • proctitis - inflammation of the rectum or anus; marked by bloody stools and a frequent urge to defecate; often associated with Crohn's disease or ulcerative colitis
  • psoriasis - chronic skin disease characterized by dry red patches covered with scales
  • psychosis - any severe mental disorder in which contact with reality is lost or is highly distorted
  • ptosis - drooping of a muscle; usually applied to drooping of the upper eyelid caused by muscle paralysis and weakness
  • pulmonary embolus - blockage of an artery in the lungs by fat, air, tumor tissue, or blood clot




Multiple Sclerosis

The risk of contracting Multiple Sclerosis if your father has the disease is approx 1 in 100.

Symptoms of Multiple Sclerosis

The symptoms of multiple sclerosis are varied and can occur suddenly, then disappear again just as quickly. There are no specific sets of symptoms applicable to any of the types of multiple sclerosis. Additionally, symptoms of multiple sclerosis tend to vary considerably from one person to another and also to be distant in time... Read More