|
Table 1: Diagnostic criteria for acute cholecystitis according to the Tokyo 18 guidelines. |
|
A. Local signs of inflammation 1. Murphy’s sign 2. Pain/mass/tenderness in URQ |
|
B. Signs of systemic inflammation 1. Fever 2. CPR increased 3. White blood cell counts increased |
|
C. Image study findings Characteristic findings of acute cholecystitis* Diagnostic suspicion: one element of A + one element of B Definitive diagnosis: one element of A + one element of B + C |
|
URQ = upper right quadrant; CPR = C-reactive protein. * Imaging findings: thickening of the vesicular wall, peri-vesicular fluid, positive Murphy’s sonographic sign. |