No Neurogenic tumors Benign neurofibromas schwannomas Malignant peripheral nerve sheath tumor Good Giant cell tumor Comes Chordoma Benign notochord cell tumor (BNCT) Of Osteoblastoma A Aneurysmal bone cyst (ABC) Sacral…
Diagnosis Cases Primary malignant tumors Chordoma 172 Undifferentiated high-grade pleomorphic sarcoma 27 Chondrosarcoma 18 Ewing Sarcoma 12 Small blue round cell tumor 9 Osteosarcoma 11 Malignant peripheral nerve sheath tumor…
Fig. 22.1 (a) Optical Tracking System. (b) Optical Tracking System placed over the head of the bed for optimal “line of sight” Fig. 22.2 Tracker attached to the pelvis with…
Fig. 23.1 Sacrectomies performed above the S1 neural foramen (a) were found to be unable to withstand postoperative mobilization compared to osteotomies performed below the S1 level (b). Due to…
Fig. 5.1 Sacral chordoma in a 55-year-old woman. (a, b) Axial and sagittal CT scan. Large osteolytic lesion arising in the midline from the lower sacrum. The mass shows low…
Fig. 15.1 Artistic drawings show embryogenesis of the vertebral column: primary neurulation. (a) Shaping. Schematic transverse sections showing neuroectodermal tissues differentiate from the ectoderm and thicken into the neural plate…
Fig. 24.1 During an anterior exposure, the omentum is easily accessible and significant mobilization can be acheived through the anterior laporotomy incision (a). Following removal of a tumor, there is…
Fig. 25.1 An 11-year-old girl with external popliteal nerve deficit of 10 days duration. (a, b) Axial CT of the sacrum showed an osteolytic lesion involving the sacroiliac joint; biopsy…
Fig. 2.1 Coronal and sagittal views of 8.5 × 6.5 cm sacral chordoma involving S3-C1 2.4 Biopsy Given that the differential diagnosis of sacral tumors is extensive, a biopsy should…
Study Patients Age-gender Primary tumor Sacral level Adjuvant treatments Procedure/margins Survival Bergh et al. [4] (2001) 11 N/A CS (high proportion of grade 2 and grade 3 CS) N/A N/A…
