Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear without lobar consolidation , pleural effusion , pneumothorax , or pulmonary edema . Mild cardiomegaly is noted . The mediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Mild cardiomegaly without acute cardiopulmonary process .