Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . Lower lung volumes are seen on the current exam . Linear opacities at the lung bases are most suggestive of atelectasis , left greater than right . There is no effusion . Cardiomediastinal silhouette is stable . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process .