Illustration copyright 2000, 2002 by Nucleus
Communications, Inc. All rights reserved.
Psoriasis is a chronic skin condition that causes skin cells to grow
too quickly, resulting in thick white or red patches of skin. The patches (or
plaques) range in size from small to large and typically occur on the knees,
elbows, scalp, hands, feet, or lower back.
Primary Medical Reviewer
Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer
Alexander H. Murray, MD, FRCPC - Dermatology
January 6, 2010
WebMD Medical Reference from Healthwise
January 06, 2010
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