Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy . There is similar volume loss in the right hemithorax with opacification at the medial right apex and thickening of what appears to represent the minor fissure . Blunting of the right costophrenic sulcus has increased and suggests minor scarring or atelectasis with a potential small effusion . There is also patchy new opacification in the right lower lobe compared to the prior chest radiographs while the left lung remains clear .
    OUTPUT:
    
Patchy new right lower lobe opacity with possible small pleural effusion . Depending on the clinical setting , mild pneumonia or sequelae of aspiration could be considered , although evolving scarring or atelectasis with associated with an interval effusion could also be considered .