Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the most recent prior study , there is a new opacity in the right lung base obscuring the right heart border and the border of the right hemidiaphragm which also projects over the heart on the corresponding lateral radiograph compatible with right middle lobe pneumonia . A small to moderate right pleural effusion is also noted . The left lung demonstrates increased lung markings in the lung base without focal consolidation , which may reflect a combination of atelectasis and pulmonary vasculature . There is engorgement of the pulmonary vessels , which is unchanged . A small left pleural effusion is suggested on the lateral view . No pneumothorax is detected . The cardiac silhouette is stably enlarged . The mediastinal contours are within normal limits and unchanged . Minimal calcification of the aortic knob is again noted .
    OUTPUT:
    
1 . Focal opacity of the right lung base with small bilateral pleural effusions may represent atelectasis or pneumonia , new from ___ . 2 . Unchanged mild pulmonary vascular congestion . 3 . Stable cardiomegaly .