Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is normal . Low lung volumes accentuate the vasculature . There is no evidence of pneumonia , pleural effusion or pneumothorax . Increased opacities near the apices of both lungs are due to costochondral cartilage changes rather than parenchymal opacities .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .