Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is significant rightward rotation on the current radiograph . Allowing for changes due to this , the cardiomediastinal silhouettes are stable from prior exam . There is a mildly tortuous thoracic aorta . There is a poor inspiratory effort , and low lung volumes . Within this limitation , the lungs are clear . There is no evidence of pulmonary vascular congestion . There is no evidence of pneumothorax or pleural effusion .
    OUTPUT:
    
No acute cardiopulmonary process .