Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrates well expanded and clear lungs . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . There is a right upper lobe 9 mm nodule seen on prior chest CT . No focal consolidation identified . Limited assessment of the osseous structures are notable for degenerative changes of the thoracolumbar spine . Visualized upper abdomen is unremarkable .
    OUTPUT:
    
Known right upper lobe pulmonary nodule as seen on prior CT scan . No acute cardiopulmonary process . No acute cardiopulmonary process .