Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest demonstrate well - expanded lungs . Again seen is a right lung nodule at the right lung base , unchanged in size from previous images . The chest is otherwise clear . There is no pneumothorax or pleural effusion . Cardiomediastinal silhouette is unremarkable . Visualized osseous structures are unremarkable .
    OUTPUT:
    
Right lower lobe opacity again seen , unchanged from previous exam . Unchanged chest radiographs .