Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are symmetrically well - expanded and well aerated without focal consolidation , pleural effusion or pneumothorax . Streaky basilar opacities suggest atelectasis or airway inflammation . The pulmonary vasculature is not engorged . Mild biapical pleural thickening is noted on the left greater than the right . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits . The thoracic aorta is slightly tortuous . The trachea is midline . The visualized upper abdomen is unremarkable . No acute osseous abnormality is detected .
    OUTPUT:
    
No evidence of pneumonia .