Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild - to - moderate pulmonary edema . There is no evidence of cardiomegaly . No focal consolidation is seen . There is no pneumothorax or pleural effusion . The hilar and mediastinal contours are otherwise normal .
    OUTPUT:
    
Mild - to - moderate pulmonary edema , likely of noncardiogenic origin given the lack of cardiomegaly . No evidence of pneumonia .