Imaging-based algorithmic approach to gallbladder wall thickening

Table 1 Features of ultrasonography which help in differentiation of benign and malignant gallbladder wall thickening

USG features	Benign wall thickening	Malignant wall thickening
Type of thickening	Diffuse and symmetric	Diffuse/focal and asymmetric
Mucosa	Intact	Discontinuous
Layered pattern of GB wall	Preserved	Lost
Color doppler findings	Low mean flow velocity and peak systolic velocity	High mean flow velocity and peak systolic velocity
Shear wave elastography parameters	Low shear wave velocity	High shear wave velocity

USG: Ultrasonography; GB: Gallbladder.