Calculous-cholecystitis-or-carcinoma-GB

This gallbladder looked ominous with a calculus lodged at the neck of gallbladder. More calculi may be present. 

Vascularity is increased with wall thickening. 

This looks like calculous cholecystitis. But carcinoma of gallbladder cannot be excluded. 

https://www.ultrasound-images.com/gb-wall-lesions/#Calculous%20cholecystitis