Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior , ETT tube has been removed . A new heterogeneous opacity in the left upper lobe and more homogeneous opacity inferiorly with shift of the mediastinum to the left , suggests collapse . There is mild pulmonary edema on the right . Pacer lead ends as expected in the right ventricle . Chest tube is unchanged in position .
    OUTPUT:
    
New left lung collapse . Right ventricular pacing wire ends in expected location .