Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 4 .2 cm from the carina . An enteric tube tip and side - port are within the stomach . Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vascularity is normal . Linear opacities in the left lung base likely reflect areas of atelectasis . The lung apices are excluded from the field of view and therefore assessment for a pneumothorax is limited . No pleural effusion is identified . No acute osseous abnormality is visualized .
    OUTPUT:
    
1 . Endotracheal tube and enteric tubes in standard positions . 2 . Exclusion of the lung apices from this exam . 3 . Linear opacities in the left lung base likely reflective of atelectasis .