Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to earlier same day , a residual left pneumothorax is seen anteriorly , with additional small areas of lucency about the upper left lung and left lung base . However , the left pneumothorax appears significantly smaller compared with earlier the same day . The small left pleural effusion is essentially unchanged . Area of relative lucency at the right lung base is again noted , question artifact . As before , pneumothorax is considered less likely , but if it remains a clinical concern , then additional imaging with low inspiratory volume films could be obtained . Again seen is the pigtail catheter at the left lung base and multiple left - sided rib fractures . No CHF and no new focal consolidation is identified . The small right pleural effusion is unchanged . The right lung nodule remains visible .
    OUTPUT:
    
The left pneumothorax remains present , but is smaller . Lucency at right lung base again noted - please see comment above .