Calcified lung nodules?

Probably: Calcification means the lesion has been there for a while and is an indication of it being benign if there are multilpe it problaly indicates a prior fungal or tuberculous infection it the lesion sontinues to grow a fna of thelesion should be performed.

Usually benign : Calcified lung nodules are usually benign processes. Commonly they represent granulomas which are your body's immune defense to wall off insults and protect you lungs from infection - usually tuberculosis or fungus. Sometimes they can also be seen in occupational exposures to heavy metals or dust. Rarely calcified nodules can represent benign lung tumors like hamartomas.

Generally no worries: These are likely "healed" TB or fungal infection that the body has "walled off" and calcified. Usually called calcified granulomas. Very common, especially in certain parts of the world where specific fungi are endemic in the environment - in those areas, nearly every one has them and they do no harm.