Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable semi-erect frontal chest radiograph again demonstrates an endotracheal tube terminating in the mid thoracic trachea and enteric tube that extends at least to the lower esophagus , with the more distal tube obscured by overlying lines . A left subclavian approach central catheter again terminates in the mid SVC . Unchanged mild cardiomegaly and bronchovascular crowding is exaggerated by low lung volumes . Mild pulmonary edema is improved on the right but worsened on the left , which could be positional or related to a small left pleural effusion . A small left pleural effusion is unchanged . There is no pneumothorax .
    OUTPUT:
    
1 . Mild pulmonary edema is changed in distribution but not severity . 2 . Unchanged small left pleural effusion .