Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest . Lung volumes are low . Heart size and cardiomediastinal contours are stable . Blunting of the left costophrenic angle is consistent with a small left pleural effusion . No focal consolidation or pneumothorax . There is no evidence of pulmonary edema .
    OUTPUT:
    
Small left pleural effusion , similar to prior . No evidence of pulmonary edema .