Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . There is no evidence of pneumonia . Slight engorgement of the vasculature is again present , but there is no overt pulmonary edema . There is no pleural effusion or pneumothorax . There are no signs of pneumonia .
    OUTPUT:
    
No evidence of pneumonia .