Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs demonstrate clear lungs . Markedly dextroconvex S - shaped scoliosis of the thoracolumbar spine is noted . Heart size is normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
No acute cardiopulmonary process .