Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly persists . Re - demonstrated is a focal opacity within the right middle lobe concerning for pneumonia . Minimal streaky opacity within the right lower lobe also is noted , which could reflect atelectasis or additional site of infection . There is no pleural effusion or pneumothorax . Lung volumes are low . There is no pulmonary vascular engorgement . Osseous structures are unremarkable .
    OUTPUT:
    
Right basilar opacity concerning for pneumonia . Followup radiographs after treatment are recommended to ensure resolution of this finding .