Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and well - aerated lungs . Subtle right infrahilar opacity with corresponding increased opacity projecting over the heart on lateral view may represent an early right middle lobe pneumonia . There is no pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Probable right middle lobe pneumonia . Followup chest radiograph in ___ weeks after treatment is recommended document resolution if warranted clinically .