Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided PICC terminates in the low SVC . Bilateral chest tubes are unchanged in position . There has been interval decrease in cardiomegaly . Mediastinal congestion has improved . Focal consolidation at the right lung base obscuring the right heart border reflects atelectasis versus pneumonia , better evaluated on most recent chest CT . A small right pleural effusion persists . Partial collapse of the left lower lobe and moderate left pleural effusion better evaluated on most recent chest CT . There is no pneumothorax .
    OUTPUT:
    
1 . No evidence of pneumothorax . 2 . Cardiomegaly and mediastinal congestion have improved . 3 . Consolidation in the right lower lobe better evaluated on most recent chest CT likely reflects pneumonia versus atelectasis . 4 . Partial collapse of the left lower lobe and moderate left pleural effusion better evaluated on most recent chest CT .