Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are patchy opacities in the anterior segment of the right lower lobe consistent with pneumonia . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . There is asymmetry of the breast tissue on the left , suggesting a prior left mastectomy .
    OUTPUT:
    
Right lower lobe pneumonia .