Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest demonstrate a small left juxtacardiac pleural effusion with minimal layering component . The location suggests loculation of the effusion . Previously seen right lower lobe opacity has cleared . There is no pneumothorax . The hilar and mediastinal contours are normal . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . Persistent small left loculated pleural effusion . 2 . No pneumothorax . 3 . Interval clearance of right lower lobe opacity , thought to represent atelectasis or pneumonia .