TG18 Criteria • Cholecystitis Severity MatrixPatient Education GuideClinical Severity StagingIGrade I — MildNo criteria for Grade II or III. Mild inflammation in a healthy patient.IIGrade II — ModerateWBC > 18k, palpable mass, duration > 72h, or marked local inflammation.IIIGrade III — SevereAccompanied by organ dysfunction (hypotension, altered sensorium, PaO2/FiO2 < 300).Select the highest severity criteria identified to visualize the TG18 management profile for acute cholecystitis.