Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes improve with repeat imaging . Vague opacities of the left lung base , projecting over the spine on the lateral view , are consistent with aspiration . There is no pleural effusion or pneumothorax . Heart is normal size . The mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
Vague opacities at the left lung base are consistent with aspiration .