Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New left upper lobe opacity is suspicious for pneumonia . Right hemithorax volume loss and increased density in the right peritracheal region is stable in may be related to prior infection or radiation treatment . At chest tube is noted at the right lung base . Stent is noted in the descending thoracic aorta and abdominal aorta . Bilateral pleural effusions are small . Mildly enlarged cardiac silhouette is stable .
    OUTPUT:
    
Left upper lobe opacity , new since ___ , is suspicious for pneumonia . Stable chronic findings .