Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Rounded opacity seen projecting over the posterior left lower lobe . No large pleural effusion is seen . The right lung is clear . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous . No pulmonary edema is seen . Degenerative changes are partially imaged at the partially imaged shoulder joints .
    OUTPUT:
    
Rounded opacity projecting over the posterior left lower lobe . Recommend further evaluation with chest CT for pulmonary mass .