Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Tracheostomy tube is in stable position . Left chest wall port is seen with tip at the RA / SVC junction . Relatively low lung volumes are seen . There is , however , no region of consolidation or effusion . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary process .