Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly is noted with moderate pulmonary edema and small bilateral pleural effusions are likely present . A right subclavian central venous catheter is again noted . No pneumothorax is seen . There is also a dense opacity in the posterior left lower lobe suggesting atelectasis but possibly pneumonia combined with effusion .
    OUTPUT:
    
Cardiomegaly with pulmonary edema and bilateral pleural effusions . Focal opacity in the posterior left lobe lobe , which may be explained by atelectasis perhaps associated with a pleural effusion , but coinciding developing infection is also possible .