Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph demonstrates unchanged position of a right chest tube with its tip directed at the right lung hilus . A moderate loculated right pleural effusion has increased from ___ , though remains smaller than seen on ___ . Subsegmental bibasilar atelectasis is not significantly changed . A small component of hydropneumothorax persists apicolaterally . The cardiac silhouette remains markedly enlarged , a combination of cardiomegaly and pericardial effusion . The mediastinal contours are unchanged .
    OUTPUT:
    
1 . Loculated right pleural effusion , increased from ___ , though still smaller than seen on ___ . 2 . Enlargement of the cardiac silhouette is unchanged , the result of cardiomegaly and pericardial effusion .