Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . Opacity at the left cardiophrenic angle is unchanged from most recent prior , then described as an epicardial fat pad . There is no focal consolidation , effusion , or pneumothorax . There is no central vascular congestion or overt pulmonary edema . Mediastinal and hilar contours are normal . Heart size is normal . Anterior and posterior cervical fixation hardware is noted .
    OUTPUT:
    
No evidence of pneumonia .