Table 1.

Clinical features of all cases with intramedullary schwannoma

No.	Age (yr)/sex	Duration of illness (mo)	Symptom	Surgery	Modified McCormick scale			Location/origin of tumor	FU (mo)	Preoperative diagnosis	NF
					Pre	Post	Last FU
1	68/M	24	Limb pain, limb paresthesia, limb weakness, gait disturbance	GTR	2	1	1	T12–L1/NA	26	Myxopapillary ependymoma	No
2	52/F	36	Limb pain, limb paresthesia	GTR	2	2	1	L1/dorsal root	32	schwannoma	No
3	71/M	36	Limb paresthesia, limb weakness, gait disturbance, bladder/bowel disturbance	STR	2	2	2	T10–L1/dorsal root	23	Schwannoma	No
4*	13/M		None	GTR	1	1	1	C1–2/dorsal root	22	Schwannoma	NF1
5	72/F	2	Limb pain, limb paresthesia, limb weakness, gait disturbance, bladder/bowel disturbance	GTR	2	2	1	C2–7/dorsal root	78	Schwannoma	No
6	29/M	2	Limb pain, limb paresthesia, limb weakness, gait disturbance	GTR	2	2	1	C4–5/intramedullary	19	Schwannoma	No
7*	43/M	60	Neck and back pain, limb pain, limb paresthesia	GTR	2	3	2	C3–5/intramedullary	24	Ependymoma	NF
8	48/F	13	Limb paresthesia, limb weakness	STR	2	2	1	C4–6/NA	40	Schwannoma	No
9	47/M	36	Headache, neck and back pain, limb paresthesia, limb weakness, gait disturbance	GTR	3	2	2	C3–5/dorsal root	38	Extramedullary tumor	No
10†	37/M	14	Neck and back pain, limb pain, limb paresthesia, limb weakness, gait disturbance, bladder/bowel disturbance	GTR	4	4	4	T9–10/intramedullary	70	Ependymoma	NF2
11	73/F	7	Limb paresthesia, limb weakness, gait disturbance	GTR	2	3	3	T10–11/NA	23	Ependymoma	No

FU, follow-up; NF, neurofibromatosis; NA, not available; GTR, gross total resection; STR, subtotal resection.

^*Neurofibromatosis type 1.

^†Neurofibromatosis type 2.