{Reference Type}: Letter {Title}: Comment on "Management of 80 sinonasal undifferentiated carcinomas. Retrospective multicentre study of the French Network of Rare Head and Neck Cancers (REFCOR). https://doi.org/10.1016/j.ejso.2023.107108." {Author}: Topkan E;Somay E;Selek U; {Journal}: Eur J Surg Oncol {Volume}: 50 {Issue}: 6 {Year}: 2024 Jun 19 {Factor}: 4.037 {DOI}: 10.1016/j.ejso.2024.108267