Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac silhouette is top - normal to mildly enlarged . The aortic knob is again calcified . No overt pulmonary edema is seen .
    OUTPUT:
    
Top - normal to mildly enlarged cardiac silhouette . No definite focal consolidation .