Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , the cardiomediastinal silhouette is unchanged . Opacification of the right middle lobe is similar -- possibly slightly worse . There is upper zone redistribution in the right lung , which appears more pronounced . Based on the ___ CT , the patient has known mediastinal lymphadenopathy and pulmonary nodules , with collapse of the right middle lobe due to interval progression of invasion of the airways . .
    OUTPUT:
    
1 . Similar , equivocally slightly worse , right base opacity , related to known right middle lobe collapse . 2 . Slight upper zone redistribution , slightly worse compared with ___ . 3 . Known pulmonary nodules and mediastinal lymphadenopathy not well depicted by radiograph . 4 . No new focal opacity and no gross effusion . Mediastinum remains midline .