Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Prominence of the right mediastinal contour is again seen , previously attributed to a tortuous ascending aorta , and again accentuated by rightward patient rotation . The heart size is normal , exaggerated by low lung volumes . No focal consolidation is seen . Rectangular opacity over the anterior right second rib is similar to multiple prior exams . No pleural effusion or pneumothorax is seen . The osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .