Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC terminates at mid SVC . Lung volume remains low . Extensive airspace opacities in bilateral lungs are less compared to 1 day ago . Cardiomediastinal silhouette is stable . There is possible small right pleural effusion .
    OUTPUT:
    
Extensive airspace opacity is less than 1 day ago , likely reflecting improved pulmonary edema in setting of multifocal pneumonia .