What is the physician global assessment (PGA) for hidradenitis suppurativa (HS)?

Updated: Aug 30, 2019
  • Author: Marina Jovanovic, MD, PhD; Chief Editor: William D James, MD  more...
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Answer

A six-stage physician global assessment (PGA) is defined as follows:

  • Clear: No inflammatory or noninflammatory nodules
  • Minimal: Only the presence of noninflammatory nodules
  • Mild: Fewer than five inflammatory nodules or one abscess or draining fistula and no inflammatory nodules
  • Moderate: Fewer than five inflammatory nodules or one abscess or draining fistula and one or more inflammatory nodules or 2-5 abscesses or draining fistulas and fewer than 10 inflammatory nodules
  • Severe: Two to five abscesses or draining fistulas and 10 or more inflammatory nodules
  • Very severe: More than five abscesses or draining fistulas

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