Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate moderate left - sided pleural effusion , improved since ___ and unchanged since ___ . Small right - sided pleural effusion noted . Lungs are grossly clear well with no focal consolidation . There is no pneumothorax . Heart size is top normal . Pulmonary vasculature is unremarkable .
    OUTPUT:
    
Unchanged left - sided pleural effusion .