2024 Volume 70 Issue 6 Pages 357-365
We herein report a case of low-grade non-intestinal sinonasal adenocarcinoma. A 77-year-old woman underwent endoscopic resection of a tumor occupying the left nasal cavity. The surgical margins were negative, and no recurrence was observed more than 18 months after surgery. In cases where sinonasal adenocarcinoma is suspected before surgery, it is important to plan for a negative surgical margin because of the poor prognosis in non-intestinal sinonasal adenocarcinoma cases with a positive surgical margin. If resection is feasible, we consider it a good indication, as it is less invasive. Preoperative embolization of the blood vessels feeding the tumor may help ensure tumor resection by contributing to the reduction of intraoperative hemorrhaging, thereby improving the endoscopic visual field and reducing tumor volume.
