Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is stable in size . Again noted is prominence of the hila consistent adenopathy seen on prior CT . A left posterior lower lobe mass is again seen , as demonstrated by opacity overlying the spine on the lateral view , better assessed on recent CT . Multiple metastases are better identified on chest CT . A right - sided Bochdalek hernia is again demonstrated . Again seen is left basilar opacity , not significantly changed since recent examination . Subtle blunting of the posterior left costophrenic angle may be due to a trace pleural effusion or pleural thickening .
    OUTPUT:
    
1 . Again seen posterior left lower lobe mass and hilar adenopathy , better assessed on recent prior CT . 2 . Subtle blunting of posterior costophrenic angle may be due to trace pleural effusion versus pleural thickening .