Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is no focal consolidation , pleural effusion or pneumothorax . Mild cardiomegaly . No acute osseous abnormalities identified . Status post left shoulder arthroplasty . Multiple surgical clips are noted along the left mediastinum .
    OUTPUT:
    
No acute cardiopulmonary process . If there is persistent clinical concern for a rib fracture , dedicated rib series could be obtained in the area of focal tenderness .