Benign gallbladder diseases: Imaging techniques and tips for differentiating with malignant gallbladder diseases

Figure 10 Fundal adenomyomatosis. A: Oval-shaped enhanced wall thickening (arrow) of gallbladder fundus on computed tomography; B: “Pearl necklace sign” unclear but suspicious intralesional hyperintensity (arrowhead) noted on T2-weighted image; C, D: No apparent diffusion restriction (arrow) on diffusion-weighted imaging (C) or apparent diffusion coefficient map (D) (diagnosed as adenomyomatosis after cholecystectomy).