Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Posterior right lower lung opacity may relate to patient 's known recent diagnosis of lung cancer . No prior study is available for comparison . Some scarring / opacity is seen along the right mid to lower lateral chest There is trace blunting of the costophrenic angles and trace pleural effusions may be present . No pneumothorax is seen . The heart shadow is top - normal . The aorta is tortuous . There are partially imaged bilateral shoulder arthroplasties .
    OUTPUT:
    
Right lower lobe opacity may correspond to patient 's known lung cancer . Correlate with prior imaging .