Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate airspace opacity predominantly in the right lung base , which is new since ___ . There is no pleural effusion or pneumothorax . Mild perihilar vascular congestion is noted . Hilar and mediastinal silhouettes are otherwise unremarkable . Heart size is normal .
    OUTPUT:
    
Right lung base airspace opacities , new since ___ , are compatible with infection . Follow - up chest radiographs recommended ___ weeks following completion of treatment to assess for resolution .