Table 1. Cases of syphilitic myelitis reported previously and current case.

Case	Age	Sex	Time to the initial infection of syphilis	Time between onset to nadir	MRI findings of spinal cord	Treatment	Recovery
Tashiro-198711	31	M	7 months	10 days	Thoracic spinal cord, enhancement at the level of T3/4	Penicillin G with prednisolone	Yes(about 1 month later)
Strom-199114	28	M	NA	6 months	Hyperintense on T2 from T6-8	Penicillin G with dexamethasone	Partial relief
Nabatame-199215	46	M	NA	NA	Thoracic spinal cord, Candle guttering appearance and abnormal enhancement in the central part of spinal cord	Antibiotic treatment	Yes
Bulundwe-200016	53	M	NA	11 months	Hyperintense with swelling on T2 from T3-6	Penicillin G	Yes
Tsui-200212	52	F	2 years	5 days	Whole spinal cord, Candle guttering appearance and abnormal enhancement in the central part of spinal cord	Penicillin G with dexamethasone	wheelchair
Kikuchi-200317	36	M	NA	3 months	Abnormal signals involving the whole spinal cord, Candle guttering appearance and flip-flop sign	Penicillin G	Yes(about 1 month later)
Matijošaitis 200618	38	M	About 1.5 years	4 months	Hyperintense on T2 from T6-8, ring-like enhancement	Penicillin G with prednisone	Partial relief
Chilver-200919	46	M	NA	7 days	Abnormal signals below T6, Candle guttering appearance and abnormal enhancement in the central part of spinal cord	Penicillin G with methylprednisolone	Yes(about 3 months later)
Dongmei He-201420	63	M	NA	12 days	T6-11, Candle guttering appearance and abnormal enhancement in the central part of spinal cord	Ceftriaxone with methylprednisolone	Yes(about 3 months later)
Siu-201721	41	M	NA	NA	spinal cord edema at C3 through T1 levels, with focal spinal cord enhancement at C6	Penicillin G	Yes(about1 week later)
Sun-201822	50	F	NA	2.5 months	Hyperintense with swelling on T2 from T1 to T10, Candle guttering appearance with flip-flop sign	Penicillin G, Ceftriaxone with methylprednisolone	Yes(about1 week later)
This case	29	F	2 years	6 months	Whole thoracic spinal cord, Candle guttering appearance with flip-flop sign	Penicillin G with dexamethasone	Yes(about 6 months later)