Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Semi-upright portable radiograph of the chest demonstrates overall interval improvement in right lower lobe opacity since the prior study , although a right infrahilar opacity remains . An endotracheal tube remains in appropriate position , terminating 5 .4 cm above the level of the carina . A nasogastric tube courses below the diaphragm and out of view . The cardiomediastinal silhouette is unremarkable . There is no pneumothorax . A small left pleural effusion is stable .
    OUTPUT:
    
Improvement in right lower lung opacification , with a small remaining infrahilar component , likely secondary to resolving asymmetric pulmonary edema . Short - term follow - up radiographs are recommended after diuresis to ensure resolution .