Table 1. Reported cases of granular cell tumors in literature (2,3).

No.	Author and year	Age/sex	Vertebral level	ED/IDEM/IM	Recurrence	Radiation therapy	Mib index	Immunohistochemistry
								S-100	CD 68	NSE	Inhibin	PAS	Vimentin	Chromogranin	Synaptophysin	EMA	GFAP
1	Markesbery et al. (4), 1973	73/F	C1	IDEM	No	No	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
2	Strömblad et al. (5), 1987	10/F	T12–L1	IDEM	No	No	N/A	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
3	Critchley et al. (6), 1997	17/F	T10	IM	Yes, 12 months	Yes	N/A	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
4	Burton et al. (7), 1997	22/F	C1-4	IM	Yes, 7 months	Yes	N/A	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
5	Takayama et al. (8), 2004	49/M	L1	IDEM	No	No	N/A	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
6	Qu et al. (9), 2009	16/F	T11–T12	IDEM	No	No	N/A	+	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
7	Weinstein et al. (10), 2010	20/F	L1–L2	IDEM	No	No	N/A	+	+	+	+	+	N/A	N/A	N/A	N/A	N/A
8	Lee et al. (2), 2013	22/F	T1–2	IDEM	No	No	N/A	+	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
9	Lee et al. (2), 2013	21/F	C5–6	IDEM	No	No	N/A	+	−	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
10	Brown et al. (11), 2015	13/F	C4–5	IM	No	No	N/A	+	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
11	Pj et al. (12), 2013	12/M	T5–6	ED	No	No	1–3%	+	N/A	N/A	N/A	N/A	N/A	−	−	−	N/A
12	Vaghasiya et al. (13), 2014	13/F	L1–3	IDEM	No	No	<1%	+	−	+	N/A	N/A	−	N/A	N/A	−	−
13	Brain pathology CHEO (3), 2016	11/M	L2–3	IDEM	No	No	N/A	+	+	N/A	N/A	N/A	+	N/A	N/A	N/A	N/A
14	Shen et al. (14), 2016	35/F	C4–5	IDEM	No	No	<1%	+	+	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
15	Present case	13/F	D12–L1	IDEM	Yes, 7 months	Yes	1–2%	+	+	x	x	x	x	x	x	x	x

IM, intramedullary; N/A, not available; x, not done.