Synchronous yet distinct HPV-associated sinonasal carcinomas on an immune-dysfunctional background. - Thomas, Jerin; Giannaris, Peter; Lee, Kelly; Marti, Juan Luis Gomez; Tham, Tristan; Pollack, Aron Z; Westra, William H; Opher, Elana; Tong, Charles C L (Journal of Surgical Case Reports, 2025)