Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided chest tube is unchanged in position . Small layering left pleural effusion appears similar to the prior study in ___ . Adjacent parenchymal consolidation is likely atelectasis , although superimposed infection would be difficult to exclude in the appropriate clinical setting . Mild pulmonary vascular congestion . Right lung is otherwise essentially clear . Previously noted left apical pneumothorax is not appreciated . Cardiomediastinal contours are unchanged . Bilateral glenohumeral joint osteoarthritis , more pronounced on the right .
    OUTPUT:
    
Little change in layering left pleural effusion with adjacent compressive atelectasis .