Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show interval removal of an endotracheal tube since the preceding radiograph . Mild pulmonary edema is improved with decreased pulmonary vascular congestion since ___ . Low inspiratory lung volumes are unchanged . Bibasilar opacification with air bronchograms may represent focal consolidation in the correct clinical context or atelectasis . The right lung base is elevated by a subjacent subpulmonic right pleural effusion . No pneumothorax is present . The cardiomediastinal silhouette is unchanged . Severe degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
1 . Bibasilar pneumonia in the correct clinical context or , alternatively , atelectasis . 2 . Improved mild pulmonary edema and decreased pulmonary vascular congestion from ___ . 3 . Small subpulmonic right pleural effusion .