Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Postoperative changes . Since prior exam , there is increasing left basilar consolidation . Mild left pleural effusion is stable . Right lung is clear . Shallow inspiration accentuates heart size , pulmonary vascularity . No pneumothorax .
    OUTPUT:
    
Mild left pleural effusion is stable . Worsened left basilar consolidation , likely atelectasis , consider pneumonitis in the appropriate clinical setting .