Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Port - A - Cath terminates in lower SVC unchanged . Cardiomediastinal silhouette is stable . Mild interstitial pulmonary edema has improved . Moderate partially loculated right pleural effusion persist . Heterogeneous right hilar and upper lung opacification consistent with known cancer , slightly increased , likely from increased atelectasis . There is no pneumothorax .
    OUTPUT:
    
1 . Improved mild pulmonary interstitial edema . 2 . Persistent heterogeneous right upper lobe opacification and moderate partially loculated right pleural effusion . 3 . Increased density in the right upper lung zone is probably related to atelectasis .