Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is enlarged but stable in size . Pulmonary vascularity is within normal limits allowing for accentuation by low lung volumes . No focal areas of consolidation are present within the lungs , and there are no definite pleural effusions .
    OUTPUT:
    
Limited study due to low lung volumes . Cardiomegaly without evidence of pulmonary edema .