Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrates right port tip within the right atrium . The lungs are well inflated . New right middle lobe opacity most consistent with atelectasis . Right lung is otherwise clear . Triangular opacity within the left lung base best seen on lateral projection likely represents scarring from previous inflammatory disease . No left pleural effusion . No additional focal opacity . Heart size , mediastinal contour and hila are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .