TABLE 1.

Clinical characteristics of nine patients with spinal schwannoma.

No.	Sex	Age	Location	Single/multiple*	Primary/recurrent	Histological grade	Tumor size (cm)	Adjacent relations to spinal canal	Shape	Bone structure destruction	Resection mode	Follow-up (M)	Final Status
1	M	47	L1-2	Multiple	Primary	Grade I	2.5; 1.5; 1	Intraspinal	Round	No	Total	35	NED
2	M	66	L2; S1	Multiple	Primary	Grade I	2.4; 1.8	Intraspinal	Round	No	Total	47	NED
3	F	65	C6-7	Single	Primary	Grade I	6	Intra-extraspinal	Irregular	Yes	Total	33	NED
4	F	53	L2	Single	Primary	Grade I	2.4	Intraspinal	Ellipse	No	Total	48	NED
5	M	62	S1-2	Single	Primary	Grade I	3.5	Intra-extraspinal	Round	yes	Total	43	NED
6	F	63	T1-2	Single	Primary	Grade I	4.3	Intra-extraspinal	Dumbbell	No	Total	46	NED
7	M	27	L4-5	Single	Primary	Grade I	6.5	Intra-extraspinal	Dumbbell	Yes	Total	45	NED
8	F	66	L1-2	Single	Recurrent	Grade I	4.2	Intraspinal	Ellipse	No	Total	44	NED
9	F	69	L3-4	Multiple	Primary	Grade I	2; 1.1	Intraspinal	Round	No	Total	45	NED

NED, no evidence of disease. *The three patients with multiple spinal schwannomas were diagnosed as schwannomatosis. They were sporadic schwannoma(s) without family history.