Spinal intraosseous schwannoma without spinal canal and neuroforamina involvement: A case report

Figure 4 Modified classification of spinal intraosseous schwannomas. Type VI: Tumors in entirely intravertebral location without intraspinal portion; Type VII: Intraspinal tumor with erosion into vertebral bodies (invasive tumor) and extension into nerve root foramen;Type VIII:Tumors including intraosseous tumors with exophytic component without intraspinal or neural foraminal extension.