Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest after left thoracentesis demonstrated no pneumothorax . There is slight re-accumulation of left - sided pleural effusion since prior . Increased vascular markings in the region of the left hilus , suggest congestion . An interstitial abnormality in the right mid lung zone and small right pleural effusion are unchanged .
    OUTPUT:
    
No pneumothorax after left thoracentesis .