Surgical Resection Combined with Preoperative Radiotherapy for a Retroperitoneal Giant Schwannoma

[LANGUAGE= "English"] Retroperitoneal schwannoma is a very rare tumor, originating from Schwann cells in the peripheral nerve sheath. Complete surgical resection is considered the best treatment, but the control of bleeding can be difficult because of the tumor’s hypervascularity. Therefore, angiography is recommended before surgical resection. Here, we report on a 40-year-old male patient who was successfully treated with total tumor resectionafter radiotherapy. This case indicates that preoperative radiotherapy may be beneficial in bleeding control in hypervascular schwannomas