Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ the moderate right pleural effusion has resolved , with an underlying heterogeneous opacity in the right lower lobe that has increased in density , concerning for pulmonary parenchymal contusion / hemorrhage or developing pneumonia . Heart size is normal and the lungs are otherwise clear . Trace left pleural effusion is again seen .
    OUTPUT:
    
1 . Heterogeneous parenchymal opacity in the right lower lobe has increased in density since the prior study , concerning for pulmonary hemorrhage or increasing pneumonia . 2 . Right pleural effusion has been drained and there is trace left pleural fluid .