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Laparoscopic cholecystitis grading. A: Normal (G0); B: No inflammation with light adhesion (G1); C: Marked wall thickening with light adhesion (G2); D: Marked inflammation with dense adhesion (G3). Classification of severity of cholecystitis was based on laparoscopic findings to assess the effect of the presence of cholecystitis on intraoperative diagnostic performance and operative performance.
