Imaging-based algorithmic approach to gallbladder wall thickening

Figure 1 Ultrasound features of benign and malignant gallbladder wall thickening. A: Mild symmetrical mural thickening with clearly defined layers (arrow) suggestive of benign thickening; B: Asymmetrical mural thickening with foal discontinuity of mucosa (arrow) suggestive of malignant thickening; C: Marked circumferential mural thickening with mesh like architecture (arrow) is seen. Also note the nodular outline of liver (short arrow) and ascites (white arrow) suggestive of decompensated ascites as the underlying cause.