Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large left pleural effusion is increased compared to before . Right pleural effusion is small . Cardiomediastinal silhouette is obscured by pleural effusion . There is almost complete collapse of the left lung , sparing left lung apex . Mild pulmonary edema is noted in the right lung . Massive dilated esophagus is unchanged . Left upper abdomen catheter is in unchanged position . Left main stem bronchus is patent but distal branches are not visualized , which may reflect bronchial impaction , possibly due to mucous . Lucency under the right hemidiaphragm likely reflect a loop of colon as seen on prior CT .
    OUTPUT:
    
1 . Near complete opacification of left hemithorax with large left pleural effusion , increased since ___ . 2 . Left main stem bronchus is patent but distal branches are not visualized , which may reflect bronchial impaction , possibly due to mucous . 3 . Dilated esophagus is unchanged .