Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is a band of atelectasis in the left lung base , new from prior . A calcified breast implant projects over the right lower chest . There is no evidence of pneumonia or CHF . No effusion or pneumothorax . Cardiomediastinal silhouette is normal and stable . Bony structures are intact .
    OUTPUT:
    
Left basal plate - like atelectasis . Otherwise normal .