Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest was reviewed . The heart is moderately enlarged . Interstitial edema is mild . Focal opacities at the lung bases , left greater than right , is likely combination of edema , small pleural effusion and atelectasis , but opacities in the left midlung zone could be due to recent aspiration , pneumonia , or pulmonary hemorrhage . Incidental note is made of an azygous fissure . No pneumothorax is present .
    OUTPUT:
    
Moderate cardiomegaly , mild pulmonary edema , bibasilar atelectasis and possible pneumonia / aspiration or pulmonary hemorrhage .