Abstract
Hemangiopericytomas (HPCs) are a rare vascular tumor arising from mesenchymal cells. We herein describe a 26-year-old man with an oropharyngeal HPC, who had a 3-month history of dysglossia and noticed a painless mass in the oropharynx. Contrast enhanced CT demonstrated an oropharyngeal tumor with a high vascularity. Preoperative biopsy of the tumor was insufficient because the tumor had high vascularity. The patient underwent transoral removal of the mass after embolization and sclerosing therapy. Postoperative diagnosis was an HPC. Eleven months have passed from the operation without any signs of either local recurrence or distant metastasis.
