Psoriasis Characteristics

The differing characteristics of the varying types of psoriasis (plaque, inverse, guttate, pustular and erythrodermic)

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  • Created by: Michelle
  • Created on: 04-09-18 19:49
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  • Psoriasis
    • Plaque (90%)
      • Characteristic
        • Well demarcated
        • Thickened
        • Red
        • Scales
        • Auspitz
      • Location
        • Extensor surfaces (arms and legs, elbows, knees, sacrum, buttocks and scalp, but the ears, extremities, palms and soles)
    • Inverse (2-6%)
      • Characteristic
        • Shiny appearance
        • Thin
        • Well demarcated
        • Less scale than plaque
        • characteristics are due to moisture and friction in the flexoral areas
      • Location
        • Flexural areas
    • Guttate
      • Most common in children and young adults; preceded by strep infections.  URTI can cause flares
      • Characteristic
        • Pinpoint
        • Darkened
        • Scales
      • Location
        • Trunk
        • Limbs
    • Pustular - acute emergency; requires systemic treatment
      • Common: 50+y/o, pregnancy, drug interaction, recent systemic corticosteroid use
      • Characteristic
        • Sterile pustules
        • Yellow
        • Systemic Symptoms
          • Fever
          • Malaise
          • Leukocytosis
      • Location
        • Palms/soles
    • Erythrodermic
      • Precipitating Causes
        • Trauma
        • Illness
        • Sudden withdrawal of corticosteroids
        • Adverse Drug Reaction
      • Characteristic
        • Nonspecific, fiery erythema
        • Desquamation
        • Edema
        • Systemic illness (if becomes chronic)

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