GIANT INTRASACRAL SCHWANOMA - 3 CASES AND LITERATURE-REVIEW

Giant sacral schwanoma is a very rare tumor (25 cases reported). The a uthors report 3 cases of giant sacral schwanoma treated by curetage th rough posterior approach and discuss symptoms and treatment. These tum ors were characterized by their minimal symptoms compared to radiograp hic findings. Magnetic resonance-imaging must be performed in order to detect extraosseous tissue component and intradural invasion. A biops y was performed to confirm the diagnosis before definitive treatment. Wide resection was proposed by many authors because of the high recurr ence rate. We believe that a wide resection is too sever as it causes neurologic sacrifices. A curetage through posterior approach preserves nerve function, and if a local recurrence occurs it remains possible to perform a wide resection, When sacroiliac joint instability is dete cted, a lomboiliac arthrodesis is indicated. Osteosynthesis could be p erformed with spine device (using pedicular and iliac screws).