Endovascular preoperative embolization of orbital hemangiopericytoma with n-butyl cyanoacrylate glue.

Hemangiopericytoma is an uncommon neoplasm that may present in myriad locations, including the lower extremities, pelvic area, and the head and neck area, including the orbit. Orbital hemangiopericytoma is often described as synonymous with orbital solitary fibrous tumor, giant cell angiofibroma, and fibrous histiocytoma, as they all belong to a spectrum of collagen-rich fibroblastic tumors that are often CD34-positive and have overlapping histopathologic features. Many cases of orbital hemangiopericytoma have been reported in the literature along with various surgical approaches, long-term outcomes, and techniques to manage recurrence; however, few have discussed preoperative embolization., Intraoperative hemorrhage is a concern in both the congenital and the adult form of these cases, and may be an indication for preoperative embolization. A unique case of preoperative embolization was presented with n-butyl cyanoacrylate for surgical resection of a large orbital hemangiopericytoma in a 58-year-old woman.