Final answer:
A woman with a painless abdominal mass and calcification of the gallbladder on a CT scan most likely has gallstones, which are solid particles that accumulate in the gallbladder. If left untreated, gallstones can cause complications such as inflammation of the gallbladder or blockage of the bile ducts.
Step-by-step explanation:
If a woman has a painless abdominal mass with an incidental finding of calcification of the gallbladder on a CT scan, this is likely due to the presence of gallstones. Gallstones are solid particles that form in the gallbladder when there is an accumulation of cholesterol. Small gallstones can pass through the bile duct and be excreted, but large gallstones can block the bile duct and cause pain. The calcification of the gallbladder is the result of the accumulation of calcium salts in the gallstones. If untreated, gallstones can lead to complications such as inflammation of the gallbladder (cholecystitis) or blockage of the bile ducts.