Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left mediastinal contour suggests mild PA enlargement , better appreciated on prior CT examination . Otherwise the cardiomediastinal contours are within normal limits . The bilateral hila are normal . The lungs are clear without evidence of focal consolidation . There is no pulmonary vascular congestion . There has been interval resolution of bilateral small pleural effusions . There are no pneumothoraces
    OUTPUT:
    
Interval resolution of small bilateral pleural effusions . No evidence of acute cardiopulmonary process .