Focal and diffuse thickening of gallbladder wall with high amplitude reflections and 'comet tail' artifacts on USG suggest the diagnosis of –: (A) Xanthogranulomatous cholecysitis, (B) Carcinoma of gall bladder, (C) Adenomyomatosis, (D) Cholesterolosis
Answer is C. Focal and diffuse thickening of gallbladder wall with comet tail artifact is characteristic of adenomyomatosis of the gallbladder.