Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are large rounded opacities in the right lung abutting the upper right chest wall and in the perihilar region . There is additional opacity at the right lung base and the right hemidiaphragm is obscured . Inspiratory volumes are slightly low . Some perihilar increased perihilar markings and atelectasis at the right lung base is noted . Doubt CHF . No gross left effusion .
    OUTPUT:
    
Complex opacification of the right lung , more completely characterized on CT obtained 1 day earlier . Probable minimal atelectasis and / or scarring in the left lung . Attention to these areas on followup radiographs is requested .