What is the role of sinus CT in the workup of granulomatosis with polyangiitis (GPA)?

Updated: Aug 31, 2021
  • Author: Christopher L Tracy, MD; Chief Editor: Herbert S Diamond, MD  more...
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This is the radiographic test of choice to evaluate sinus disease. Findings on thin-section sinus CT scans are abnormal in more than 90% of adults with GPA. A similar number would be expected in the pediatric population, based on an 83% incidence of sinusitis reported by Rottem et al. [57]

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