Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates in the right mainstem bronchus . Left chest wall port catheter terminates in the right atrium . Heart size and cardiomediastinal contours are normal . Small left pleural effusion is noted with associated basilar atelectasis . The lungs are otherwise clear without focal consolidation or supine evidence for pneumothorax . Bony structures appear intact . A catheter prior overlies the right upper quadrant .
    OUTPUT:
    
Malpositioned endotracheal tube extending into the right mainstem bronchus . Retraction by at least 3 - 4 cm advised . Small left pleural effusion with basal atelectasis .