Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right hilar fullness corresponds to known right hilar soft tissue mass . Areas of opacity centrally within the right lung and at the bilateral bases may represent atelectasis , however aspiration or pneumonia could be considered in the appropriate clinical setting . Heart is top - normal in size . Blunting of the left costophrenic angle suggests a small left pleural effusion . No pneumothorax .
    OUTPUT:
    
1 . Opacities centrally within the right lung and at the bilateral bases may represent atelectasis , however aspiration or pneumonia could be considered in the appropriate clinical setting . 2 . Small left pleural effusion . 3 . Right hilar fullness corresponds known right hilar soft tissue mass .