Rare Presentation of Sinonasal Synovial Sarcoma With Frontal Sinus and Limited Intracranial Extension Associated With Probable Paraneoplastic Vasculitis: A Case Report. - Jobran, Afnan W. M.; Alzatari, Ibrahim; Abugharbieh, Yazan; Abdulrazzak, Mohammed; Arafat, Hasan; Rawal, Neetu (Case Reports in Surgery, 2026)