Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal and lungs are clear . No pleural effusion , pneumothorax or focal airspace consolidation . Heart is mildly enlarged but unchanged from at least ___ . No pulmonary edema . Mediastinal and hilar contours are unremarkable . Cervical fusion hardware is partially imaged .
    OUTPUT:
    
Stable , mild cardiomegaly without an acute cardiopulmonary process .