Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly has been stable compared to exams dated back to at least ___ . There is pulmonary vascular congestion . There has been an interval increase in left basilar opacification . There is also an increase in small right pleural effusion . There is no evidence of a pneumothorax . Nodule previously identified near the left hilus is not well visualized on this study , possibly obscured by vascular congenstion and infiltrate / atelectasis .
    OUTPUT:
    
1 . Interval increase in opacity at the left lung base is concerning for pneumonia . 2 . Mild pulmonary edema . 3 . Interval increase in small right pleural effusion .