Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a right pleural effusion with relaxation atelectasis of the adjacent right lower and right middle lobes . There may be a minimal trace residual left pleural effusion . The cardiomediastinal silhouettes are stable . The bilateral hila are unremarkable . Aside from right basal atelectasis , the lungs are clear without focal consolidation . There is no pulmonary vascular congestion . There is no pneumothorax .
    OUTPUT:
    
1 . Persistent , stable right pleural effusion since ___ . Adjacent right lower and middle lobe relaxation atelectasis . Note , although unchanged in appearance , it would be difficult to evaluate for superimposed infectious process in this location . 2 . Possible residual trace left pleural effusion , although considerably smaller since prior . 3 . No focal lung consolidation elsewhere .