Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral upper lobe opacities are concerning for pneumonia , new compared to ___ . The previously seen right upper lobe pulmonary nodule is less conspicuous on today 's exam . There is mild cardiomegaly and mild vascular congestion , but no pulmonary edema . There is mild vascular congestion and a small left pleural effusion . There is no pneumothorax .
    OUTPUT:
    
Bilateral upper lobe pulmonary opacities are concerning for pneumonia .