Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is widespread , heterogeneous , non-confluent , bilateral opacities with lower lobe predominance . The extent of the distribution of the opacities has increased compared to prior study . The pulmonary vasculature is difficult to assess ; however , does not appear enlarged . The heart is within normal limits . There is no pneumothorax . The cardiac and mediastinal and hilar contours are normal .
    OUTPUT:
    
Worsening likely multifocal pneumonia , likely atypical organism or PCP , alternatively pulmonary hemorrhage or drug reaction .