Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation is seen . A punctate millimetric linear radiopaque structure projecting at the level of the right diaphragm on the lateral view has been present since at least ___ . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .