Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are unchanged compared to the prior study . The trachea is central . The cardiomediastinal contour is within normal limits . The heart is not enlarged . Multiple surgical clips close to the gastroesophageal junction are unchanged in appearance compared to the prior study . No pleural effusion , pneumothorax or consolidation seen . No signs of apical bullous change although small bullae would be better evaluated on CT .
    OUTPUT:
    
No acute cardiopulmonary process seen .