Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs : No acute infiltrate is seen . A nodular density persists in the left base probably nipple shadow . This was present in the past . Pleura : There is no pleural effusion . Mediastinum : No mediastinal mass is seen on this AP examination . Heart : The heart is not enlarged . Osseous structures : The osseous structures are normal for age . Additional findings : The endotracheal tube is 4 cm above the carina . Monitor leads overlie the chest . A feeding tube is projected over the abdomen and extends beyond the field of view of this chest radiograph . Left - sided surgical clips are seen presumably in the breast .
    OUTPUT:
    
Endotracheal tube in satisfactory position