Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates approximately 1 .8 cm above the level of the carina . Recommend withdrawal by approximately 2 cm for more optimal positioning . Enteric tube courses below the diaphragm into the left abdomen , inferior aspect not included on the image . Left base opacity with shift of the mediastinum to the left suggests left lower lobe collapse with possible underlying pleural effusion or consolidation . The cardiac silhouette is top - normal . Mediastinal contours are unremarkable .
    OUTPUT:
    
Endotracheal tube terminates 1 .8 cm above the carina , recommend withdrawal by approximately 2 cm for more optimal positioning . Left base opacity with leftward shift of the mediastinum suggest left lower lobe collapse , underlying pleural effusion or consolidation not excluded .