Hemangiopericytoma is a rare tumor and accounts for about 1% of the vascular tumor. The most common site is the lower extremities, retroperitoneum/pelvis fossa, and the head and neck. Mediastinum origin is rare especially with neuroforamen invasion. Herein, we presented a case of 71-year-old woman with primary mediastinal tumor mass with progressive enlargement. She was treated by total T4 laminectomy and partial T3 + T5 laminectomy with intraspinal tumor removal and exploratory thoracotomy with resection of the tumor. She was under postoperative radiotherapy at our Oncology Department. The tumor was under well control until now.