Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A nasogastric tube enters the stomach , tip not visualized . An endotracheal tube terminates at the level of the clavicles . The chin and associated soft tissues partially obscure the lung apices . Marked cardiomegaly despite the projection has increased . Lung volumes are relatively low , and retrocardiac and right basilar subsegmental atelectasis is unchanged . The lungs are grossly clear .
    OUTPUT:
    
Nasogastric tube enters the stomach , tip not visualized .