Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Relative opacification in the left lateral chest compared to the right , likely relates to soft tissue attenuation . The lungs are clear without focal consolidation concerning for pneumonia , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette , mediastinal and hilar contours are within normal limits . The trachea is midline .
    OUTPUT:
    
No acute cardiopulmonary process .