Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine AP portable views of the chest were obtained . Linear left basilar opacity likely represents atelectasis . No definite focal consolidation is seen . Rounded calcified opacity at the lateral right lung base is stable and may represent a calcified granuloma . A radiopaque rounded structure projects over the right upper - to - mid hemithorax and may be external to the patient . No large pleural effusion or evidence of pneumothorax is seen . Left greater than right biapical pleural thickening is again seen . The cardiac and mediastinal silhouettes are stable . No acute fracture is seen .
    OUTPUT:
    
Left basilar atelectasis . Otherwise , no acute cardiopulmonary process .