# A Combined Surgical Approach for the Treatment of a Sino-Naso-Orbital Glomangiopericytoma

## TL;DR

A rare case of a sinonasal tumor with orbital extension was successfully treated using a combined surgical approach.

## Contribution

This case report presents a rare tumor with orbital extension and its successful treatment using a combined surgical method.

## Key findings

- The tumor was centered in the ethmoidal cells with nasal bone erosion and orbital invasion.
- A combined endoscopic and trans-sinusal frontal approach was used for tumor removal after embolization.
- The patient had an uneventful recovery and long-term follow-up.

## Abstract

Glomangiopericytomas are a rare type of sinonasal tumors with high relapse rates. Endoscopic sinus surgery is the classical technique to remove such tumors. Here we report a case of sinonasal glomangiopericytoma with orbital extension, infrequently described in the literature. A 50 year-old woman was referred to our hospital because of a right paranasal painless swelling, which appeared 9 months ago and was slowly increasing in size since her first visit. A Magnetic Resonance Imaging (MRI) revealed a tumor (18 × 25 × 37 mm) centered on the right ethmoidal cells, with adjacent nasal bone erosion and a right orbital invasion. The tumor was removed with a combined surgical approach (endoscopic and trans-sinusal frontal approach) after pre-surgical embolization. Based on the results of the histopathological examination, the diagnosis of a glomangiopericytoma was confirmed. The patient was discharged after one week, and an uneventful long-term follow-up.