Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pneumothorax after thoracocentesis . Left pleural effusion and atelectasis has significantly improved after thoracocentesis and is now minimal . Right lung base opacification is unchanged since ___ but increased since ___ . This could only be a mixture of pleural effusion and atelectasis but an infectious process can not be excluded and close followup is suggested . Mild pulmonary edema is unchanged in this patient with prior sternotomy and mild cardiomegaly . Left - sided PICC line ends in lower SVC .
    OUTPUT:
    
1 . There is no pneumothorax after thoracocentesis . Left pleural effusion and atelectasis have significantly improved and is now minimal . 2 . Right lung base opacities are unchanged since ___ which could be a mixture of pleural effusion , atelectasis , but considering that this is new since ___ , pneumonia can not be excluded and close followup is suggested .