Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There is linear opacity in the left mid lung , which appears dense and likely calcified . There are also associated likely calcified left hilar lymph nodes . This is suggestive of previous granulomatous disease . Linear opacity at the right lung base is also identified . Elsewhere , the lungs are clear . Cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications seen at the aortic arch . No acute osseous abnormality is identified .
    OUTPUT:
    
Findings suggestive of previous granulomatous disease in the left lung . Streaky right basilar opacity most likely atelectasis although infection is also possible .