Fageeh, Yahya A. “A Rare Case of Large Retropharyngeal Pre-Vertebral Chordoma Presented As Oropharyngeal Swelling”. International Surgery Journal 10, no. 11 (October 27, 2023): 1824–1827. Accessed October 20, 2025. https://www.ijsurgery.com/index.php/isj/article/view/10024.