Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . A linear density abuts the left heart border at the left lung base likely platelike atelectasis . Otherwise lungs appear clear without evidence of pneumonia or edema . No large effusion or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Minimal left basal platelike atelectasis . Otherwise unremarkable .