Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tracheostomy is in adequate position at 6 .9 cm above the carina . The left subclavian line ends in the mid SVC . Stability of the moderate bilateral widespread ground glass - like opacities . The mediastinal and cardiac contour are unchanged . There is no pneumothorax and no pleural effusion .
    OUTPUT:
    
There is no significant change since the previous exam .