Thayyezhuth D, Kallappa S, Koppad R, Pawar SR, Guttedar D, Ishwarappagol S. An unusual case of maxillary sinus involvement by a malignant peripheral nerve sheath tumour. Int J Otorhinolaryngol Head Neck Surg [Internet]. 2025 Dec. 5 [cited 2026 Jan. 17];. Available from: https://www.ijorl.com/index.php/ijorl/article/view/4907