My parents are immigrants and live in a different city from me, so I am looking for some insight on a recent appointment my father had, and they are unable to explain to me what is going on. My father recently had a MRI or CT scan (not sure which or if it matters). They told him they saw a spot on his lungs. They then prescribed him Rosuvastapin Calcium and told him to take it for a month and come in for another scan. Can you explain what the correlation might be between the spot on the lungs and that medication?