Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is re- demonstration of the known azygos fissure . Increased pulmonary vascular markings is compatible with pulmonary vascular congestion . There are new left lower lobar opacities , which may represent superimposed infection in the correct clinical setting . No pleural effusions or pneumothorax detected . The cardiomediastinal silhouette is otherwise unremarkable .
    OUTPUT:
    
1 . Mild pulmonary vascular congestion . 2 . New left lower lobe opacities are concerning for superimposed infection , in the correct clinical setting .