Increased radiographic opacity in the region of the gallbladder can be identified in dogs with large amounts of gallbladder sediment, sludge balls, and gallbladder mucocele (在膽囊區域出現opacity增加的狀況時，可能在患有大量膽囊沉澱物、膽汁結塊和膽囊粘液囊腫的狗隻中被識別出。)