Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear of focal consolidation . There is however new nodular opacity projecting over the left upper lung not clearly seen on the previous exam . Cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications are noted at the aortic arch . No acute osseous abnormalities are identified .
    OUTPUT:
    
No acute cardiopulmonary process . Left upper lung nodular opacity on the frontal view not seen on prior may represent underlying lung nodule and dedicated nonurgent chest CT is suggested if further evaluation for possible nodule is desired .