Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Unchanged right hemidiaphragm elevation . Lungs are otherwise well expanded and clear . No pleural effusion or pneumothorax . Mild cardiomegaly is unchanged . No pulmonary edema . Cardiomediastinal and hilar silhouettes , including prominence of the azygos contour , are unchanged since ___ , not corresponding to lymphadenopathy on CT .
    OUTPUT:
    
No evidence of acute cardiopulmonary abnormality .