ABSTRACT
I. INTRODUCTION Tumors of the bony pelvis and sacrum are rare and diverse. They are problematic clinically because the presenting symptoms commonly are vague, of long duration, and can mirror those of nonneoplastic processes. A multidisciplinary approach is recommended to optimize disease management. Preoperative planning is critical to the success of the tumor extirpation and pelvic reconstruction in order to minimize the myriad potential intraoperative and postoperative complications. As a result, most primary tumors of the pelvis and sacrum present as locally advanced destructive processes.
