Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacer device is stable in position . The cardiac and mediastinal silhouettes are stable . Slight increase in opacity projecting over the right mid lung is grossly stable compared to multiple priors and may be due to overlap of structures . Calcification along the right diaphragm is again seen . No pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .