Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal lung volumes . No pleural effusion , focal consolidation , or pneumothorax is seen . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema . Partially imaged upper abdomen is unremarkable . A round density projecting just inferior to distal left clavicle may be artifactual or represent soft tissue calcification .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .