Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate a ring - shaped opacity right upper lobe , previously seen on PET - CT from ___ , and described as a cavitary nodule . Additional pulmonary nodules identified on recent PET - CT are not as well evaluated on this study , as CT is more sensitive . The heart size is stable and the aortic contour is tortuous , but unchanged since the prior study . There is no evidence of pulmonary edema or pleural effusion . No pneumothorax is present .
    OUTPUT:
    
No acute cardiopulmonary process .