Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a focal opacity seen in the right mid to upper lung likely localizing to the upper lobe based on the lateral view . Elsewhere , the lungs are clear without effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality identified .
    OUTPUT:
    
Vague focal opacity in the right mid lung for which a nonurgent chest CT is suggested to further characterize . Otherwise unremarkable chest x-ray .