Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hazy bibasilar opacities are likely due to technique and overlying soft tissues . Superiorly , the lungs are clear . There is no overt pulmonary edema . The cardiomediastinal silhouette is stable . Atherosclerotic calcifications seen at the aortic arch .
    OUTPUT:
    
Limited exam without definite acute cardiopulmonary process .