Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . 7 mm nodular opacity within the right upper lobe is similar compared to the prior CT chest allowing for differences in technique . Lungs are otherwise clear . No focal consolidation , pleural effusion or pneumothorax is seen . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality . 7 mm right upper lobe nodule is unchanged compared to the prior chest CT allowing for differences in technique .