Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is focal opacity projecting at the right lung apex . Associated volume loss is seen on the right . Elsewhere , the lungs are clear . There is no effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . Thoracic aorta is somewhat tortuous with atherosclerotic calcifications at the arch . No acute osseous abnormality is identified .
    OUTPUT:
    
Right apical opacity with associated right - sided volume loss is most suggestive of a chronic process . However , given lack of priors to document stability , additional imaging would be suggested and can be performed by chest CT unless older films become available .