Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The study is slightly limited by a marked lordotic positioning . The heart size is likely within normal limits . Mediastinal and hilar contours are within normal limits . No focal consolidation , pleural effusion or pneumothorax is identified . There is no pulmonary vascular congestion . The osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary abnormality .