Fig. 6
From: Gallbladder adenomyomatosis: imaging findings, tricks and pitfalls
US of gallbladder adenomyomatosis: use of different frequencies probes. In this patient with diffuse GA, the gallbladder wall is poorly evaluable by means of a conventional 5-MHz convex probe (a). Using a high-resolution 7-MHz linear probe (b) hyperechoic Rokitansky–Aschoff sinuses (arrows) can be highlighted within a diffusely thickened gallbladder wall; moreover, the serosa maintains sharp margins (arrowheads)