Fig. 6From: RSNA and BSTI grading systems of COVID-19 pneumonia: comparison of the diagnostic performance and interobserver agreementCase example defined in the indeterminate for the BSTI guidance statement, and in the typical category for the RSNA expert consensus statement. An axial chest CT image of a 68-year-old male without COVID-19 shows peripheral multifocal GGOs (arrows) in the background of moderate emphysema. The final diagnosis was usual interstitial pneumoniaBack to article page