Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , no significant changes are appreciated . Substantial right lung volume loss with rightward mediastinal shift and right hemidiaphragm elevation is unchanged . The right mediastinal mass with adjacent radiation fibrosis is unchanged . Postsurgical right apical scarring is similarly unchanged . The left lung is fully expanded and clear . No pleural effusion or pneumothorax . Heart size is normal . No pulmonary vascular congestion or pulmonary edema .
    OUTPUT:
    
Stable postsurgical and post radiation changes in the right hemithorax . No radiographic evidence of pneumonia or other acute cardiopulmonary abnormalities .