Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: One portable upright AP view of the chest . A moderate right pleural effusion with fluid layering along the lateral right lung and apex as well as medially adjacent to the mediastinum is unchanged . Mild right lower lobe atelectasis is unchanged . The cardiac , mediastinal and hilar contours are stable . Calcified lymph node in the aortopulmonary window is unchanged . The left lung is clear . No left pleural effusion .
    OUTPUT:
    
No significant change in moderate right pleural effusion .