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 ___ . Low inspiratory effort seen on the current exam , particularly on the lateral . There is linear opacity projecting over the cardiac silhouette on the lateral likely due to atelectasis . There is also faint increased opacity projecting over the posterior costophrenic angles which may also be due to atelectasis . Elsewhere , the lungs are clear . There is no effusion or pneumothorax . Cardiomediastinal silhouette is normal as are the osseous and soft tissue structures .
    OUTPUT:
    
Basilar opacities potentially due to atelectasis given lower lung volumes ; however , given history , infection is not completely excluded . Clinical correlation suggested .