Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left anterior chest wall ICD leads are unchanged . Multifocal , indistinct opacities correspond to diffuse tree in ___ nodularity and foci of dense consolidation , particularly in the right lung base , worse compared to the outside prior radiograph . No other relevant change compared to the outside hospital study from 4 hr prior .
    OUTPUT:
    
Multifocal pneumonia , most prominent in the right lung base , progressed since four hours prior .