Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and generally . However distortion of the apparent left heart border persists . It could be a scar or chronic atelectasis in the lingula or a rare pleural or mediastinal nodule . If not already performed the patient should have an elective Chest CTA scan to exclude a small endobronchial mass or other active process . The cardiomediastinal silhouette , hilar contours and pleural surfaces are otherwise normal . No pleural effusions or pneumothorax is present .
    OUTPUT:
    
No acute abnormality . Particularly the patient 's recurrent complaint of chest pain , it is important that attention be paid to a ___ year old abnormality in the lingula or adjacent pleura or mediastinum , with a Chest CTA , if not already performed . No acute intrathoracic process .