Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left lower lung collapse and pleural effusion is unchanged since ___ . Right lung is unremarkable . There is no pulmonary edema . There is no pneumothorax . Tracheostomy ends 8 cm above the carina . Cardiac contour is mildly enlarged . Left - sided PICC line distal end is hard to see .
    OUTPUT:
    
There is no significant change since ___ . Left lower lobe collapse and pleural effusion are stable .