Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior examination dated ___ , there has been slight interval increase in now moderate pulmonary interstitial edema and central pulmonary vascular congestion . A background of prominent interstitial markings likely reflects underlying interstitial lung disease , as before . Perihilar and bibasilar airspace opacities likely reflect atelectasis , although superimposed infection is difficult to exclude . There is no pleural effusion or pneumothorax . The heart is mildly enlarged . Partially imaged cervical spinal hardware is noted .
    OUTPUT:
    
Mild cardiomegaly with moderate central pulmonary vascular congestion and edema . Streaky bilateral airspace opacities likely reflect atelectasis , although superimposed infection is not excluded .