Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small heterogeneous area of opacity at the right lung base , which could reflect pneumonia at an early stage . There is no effusion or pneumothorax . Mediastinal and hilar contours are normal . Heart size is normal .
    OUTPUT:
    
Small heterogeneous area of opacity at the right lung base suggests early pneumonia in the setting of acute clinical symptoms . Recommend follow - up chest radiograph in ___ weeks following antibiotic therapy to evaluate for resolution .