Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral pigtails are unchanged at lung bases . There is no pneumothorax . Right residual pleural effusion is moderate . Left pleural effusion is small , if any . Left Port - A - Cath is in adequate position and esophageal stent is unchanged . Mediastinal and cardiac contours are stable .
    OUTPUT:
    
There is no pneumothorax , and the two basal pigtails are unchanged .