Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is in unchanged position . Right PICC terminates in mid SVC . Lung volumes remain low . Right lung base opacity is increased , possibly due to increased atelectasis and pleural effusion . Left lung base opacity is stable . Severely enlarged cardiac silhouette is unchanged . Pulmonary edema is mild .
    OUTPUT:
    
Increased right lung base opacity may reflect increased atelectasis and pleural effusion . Left lung base atelectasis in pleural effusion is stable . Pulmonary edema is mild .