Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The previously seen patchy opacities in the bilateral lower lobes , right middle lobe , and lingula are not significantly changed . There is no evidence of pleural effusion or pneumothorax . The heart size is normal . Mediastinal contours are normal .
    OUTPUT:
    
Multifocal pneumonia , unchanged compared to study done on ___ . Given the lack of improvement with treatment , consider CT to better characterize .