Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs were obtained . Lung volumes are low . There is moderate bilateral pulmonary edema as well as pulmonary vascular congestion . There is a more focal area of opacity in the left lung base . Moderate cardiomegaly is again noted but unchanged . The posterior costophrenic angles are not clearly seen , likely due to small bilateral pleural effusions . There is no pneumothorax .
    OUTPUT:
    
Moderate pulmonary edema with a more focal opacity seen in the left lung base . Super - imposed pneumonia can not be excluded in the appropriate clinical setting .