Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Inspiratory volumes are slightly low . A tracheostomy is again noted . Compared with the prior film , I doubt significant interval change . Again seen is patchy opacity at the right greater than left lung bases . The differential diagnosis includes pneumonic opacities , areas of aspiration pneumonitis ( typically on the right ) , or severe atelectasis , though infectious infiltrates are suspected . No gross joint effusion .
    OUTPUT:
    
Doubt significant change compared 1 day earlier .