Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left lower lobe atelectasis with mild - to - moderate pleural effusion is unchanged since ___ . There is no new lung consolidation . Mediastinal and cardiac contours are stable . There is no pneumothorax . The tracheostomy is in adequate position . Left - sided PICC line ends in mid SVC .
    OUTPUT:
    
There are no new opacities . Left lower lobe atelectasis with pleural effusion is unchanged since ___ .