Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . No pleural effusion , pneumothorax or focal airspace consolidation . Accentuation of the hilar structures is thought to be related to slightly lower lung volumes . Cardiac and mediastinal contours are normal . Normal upper abdomen . No acute osseous abnormality .
    OUTPUT:
    
No acute cardiopulmonary process .