Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two frontal images of the chest demonstrate improvement in the bibasilar lung opacities since previous imaging with complete resolution . There is no pleural effusion visualized , but the left costophrenic angle is not completely imaged . There is no pneumothorax . Cardiomediastinal silhouette is unchanged from prior imaging .
    OUTPUT:
    
Improvement in bilateral basilar lung opacities since prior imaging . Otherwise , unchanged chest radiograph .