Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single . AP and lateral views of the chest . There are small bilateral effusions . There is new retrocardiac opacity silhouetting the medial hemidiaphragm and silhouetting of the left heart border . Linear opacity in the lateral views suggestive of atelectasis likely in the lingula . Superiorly lungs are grossly clear . The cardiomediastinal silhouette not definitely changed . Hypertrophic changes seen in the spine .
    OUTPUT:
    
Small bilateral effusions . More focal opacities in the likely in the lingula and left lung base potentially atelectasis versus infection .