Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to CT abdomen from ___ and chest x-ray from ___ . There has been interval resolution of subcutaneous gas overlying the right chest wall . There is persistent elevation of the right hemidiaphragm , which could be due to combination of ascitic fluid below the diaphragm and possible component of subpulmonic effusion as well . The lungs themselves are clear . Cardiomediastinal silhouette is within normal limits . Post-traumatic changes are seen involving multiple anterior right ribs and the lateral right clavicle . No acute osseous abnormality detected . No free air is seen below the diaphragm .
    OUTPUT:
    
Elevated right hemidiaphragm thought to represent some combination of subdiaphragmatic ascitic fluid and possible pleural effusion , similar to prior . No other superimposed acute cardiopulmonary process .