Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . No prior . Lateral view is limited due to overlying soft tissues . There is a focal opacity in the left mid lung , not clearly delineated on the lateral view , but potentially in the lower lobe . Focal opacity also identified at the right lung base laterally , potentially due to pleural thickening or scarring . There is no effusion . Cardiomediastinal silhouette is within normal limits for technique . Atherosclerotic calcification is noted at the arch . No acute osseous abnormalities detected , although bones are diffusely osteopenic , limiting evaluation .
    OUTPUT:
    
No acute cardiopulmonary process . A nodular somewhat irregular opacity in the left lung . Given patient is asymptomatic based on this preop film , dedicated non-urgent chest CT is suggested to further evaluate .