Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to ___ portable chest radiograph , there has been interval improvement in pulmonary edema particularly in the bilateral lung regions . There is stable moderate cardiomegaly , pulmonary vascular congestion , cephalization of pulmonary vessels , and persistent pulmonary edema at the bilateral mid to lower lungs . Bilateral layering pleural effusions persist . Tracheostomy tube and right PICC line are in stable position .
    OUTPUT:
    
1 . Moderate interval improvement of volume overload and pulmonary edema particularly in the bilateral upper lungs since ___ . However , pulmonary vascular congestion , and pulmonary edema persist in the bilateral mid to lower lung . 2 . Persistent bilateral layering pleural effusion .