What is the dynamic staging system of hidradenitis suppurativa (HS)?

Updated: Aug 30, 2019
  • Author: Marina Jovanovic, MD, PhD; Chief Editor: William D James, MD  more...
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Dynamic staging system have been used for assessing differences in treatment effects. [6] Uniform outcome variables should take into account the known characteristics of hidradenitis suppurativa, including the following: [6]

  • Anatomical region involved (axilla, groin, genital, gluteal, or other inflammatory region left and/or right) - Three points per region involved

  • Number and scores of lesions (abscesses, nodules, fistulas, scars) - Two points for each nodule, 4 points for each fistulas, 1 point for each scar, 1 point for each "other"

  • The longest distance between 2 relevant lesions, ie, nodules and fistulas, in each region, or size if only 1 lesion - Less than 5 cm, 2 points; less than 10 cm, 4 points; more than 10 cm, 8 points

  • Lesions are clearly separated by normal skin in each region - If yes, 0 points; if no, 6 points.

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