Table 1.

Clinical summary of 17 patients with intramedullary ependymoma.

Case No.	Age (years) & sex	Duration (months) of symptoms	Symptoms	Tumor location	Surgical resection	Monitoring	Pre-op Gradea	Post-op Gradea	Grade at follow-up	Follow-up duration (months)	note
1	22, M	6	S,M	L1-2	subtotal	none	II	I	I	17	none
2	35, F	12	S,M,P	C2-T1	total	none	II	III	III	120	2 operations
3	36, M	7	P	C4-C7	total	none	I	I	I	33	none
4	28, M	2	S,P,U	T9-T11	subtotal	SSEP	I	II	I	54	none
5	56, F	2	S,P,M	L1-2	total	none	III	II	II	30	none
6	29, M	3	S,M	T10-L1	total	MEP SSEP	II	II	II	12	none
7	32, M	14	M,U	T5-6	total	SSEP	II	IV	IV	48	DVT
8	44, M	48	S,M	C3-C7	total	none	II	IV	IV	56	none
9	34, M	12	M,P	C2-6	total	none	II	II	I	96	none
10	50, M	24	S,P	C4-6	total	MEP SSEP	I	I	I	9	none
11	35, M	48	S,M,C	C1-6	debulking	none	II	II	II	33	CSF leak
12	74, M	12	S,M,P,U	C1-6	total	MEP SSEP	II	II	I	13	CSF leak
13	66, F	12	S,M,P,C	Medb-C1	subtotal	none	II	II	II	8	none
14	40, M	1	S,M	C1-2	total	SSEP	II	IV	IV	43	none
15	23, M	8	S,M	C2-6	total	none	II	IV	IV	40	none
16	61, M	10	S,M,P,C	Medb-C4	subtotal	SSEP	IV	IV	IV	52	malignant
17	43, M	4	S	C5-7	subtotal	SSEP	I	I	I	14	none

For symptoms, DVT: deep vein thrombosis. S: sensory, M: motor, P: pain, U: urinary incontinence, C: cranial nerves deficits. For monitoring; SSEP: somatosensory evoked potential. MEP: motor evoked potential. a: McCormick grading scale. b: Med: medulla.