Table 2:

Rim and flame signs in intramedullary spinal cord metastases (per-patient basis)

	Rim Sign Only	Flame Sign Only	Both Signs	Neither Sign	At Least One Sign
All ISCMs (n = 45)	9 (20%)	6 (13%)	12 (27%)	18 (40%)	27 (60%)
Lung carcinoma (n = 22)	6 (27%)	3 (14%)	8 (36%)	5 (23%)	17 (77%)
Breast carcinoma (n = 6)	0	0	1 (17%)	5 (83%)	1 (17%)
Melanoma (n = 5)	0	1 (20%)	1 (20%)	3 (60%)	2 (40%)
CNS origin (n = 4)	0	0	0	4 (100%)	0
Renal cell carcinoma (n = 2)	0	1 (50%)	1 (50%)	0	2 (100%)
Other (n = 6)	3 (50%)	1 (17%)	1 (17%)	1 (17%)	5 (83%)
ISCM identified prior to systemic metastatic disease diagnosis (n = 10)	3 (30%)	2 (20%)	4 (40%)	1 (10%)	9 (90%)
Radiation therapy for primary malignancy included relevant spinal cord (n = 5)	0	1 (20%)	3 (60%)	1 (20%)	4 (80%)
Ongoing systemic steroid therapy at time of MRI (n = 12)	2 (17%)	2 (17%)	3 (25%)	5 (42%)	7 (58%)