Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . The small consolidative opacity projecting just superior to the minor fissure is unchanged , however a larger region of heterogeneous opacification in the right lung base has enlarged since ___ , consistent with progression of one site of multi focal pneumonia . . There is no pleural effusion or pneumothorax . Cardiomediastinal and hilar structures are normal .
    OUTPUT:
    
Progression since ___ of the lower lobe component of multifocal pneumonia in the right lung .