Preoperative Embolization for Sinonasal Angiosarcoma Optimized Intraoperative and Postoperative Outcomes: A Case Report

Sinonasal angiosarcoma is a rare but aggressive tumor that should be included in the differential diagnosis of vascular sinonasal lesions. Preoperative embolization is an essential adjunct to reduce intraoperative bleeding and facilitate safe resection. Early diagnosis, multimodal treatment, and long-term follow-up are critical for improved outcomes.