Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There has been interval drainage of the right pleural effusion with a small amount of residual fluid in the right pleural space which appears to localize laterally and posteriorly . There is no pneumothorax . The left lung appears clear . Cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Interval reduction in right pleural effusion , with small residual effusion which appears loculated and positioned posterolaterally . No pneumothorax .