Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded . The known right upper lobe lung mass is unchanged . The mediastinal contour is stable . Stable mild cardiomegaly . No pneumothorax or pneumomediastinum . No pleural effusion . No acute osseous abnormality .
    OUTPUT:
    
No pneumothorax or pneumomediastinum status - post bronchial biopsies . No acute cardiopulmonary process .