Focal and diffuse thickening of gallbladder wall with high amplitude reflections and 'comet tail' artifacts on USG suggest the diagnosis of –
Focal and diffuse thickening of gallbladder wall with comet tail artifact is characteristic of adenomyomatosis of the gallbladder.
Xanthogranulomatous cholecysitis
Carcinoma of gall bladder
Adenomyomatosis
Cholesterolosis