Spinal Syphilitic Gumma: A Rare Presentation of an Old Disease

Table 2

Summary of historical serum syphilis investigations.

Year	EIA total	TPPA	RPR	IgM
2015	—	Neg	Neg	N/A
2018	Detected	1 : 20480	1 : 32	Equivocal
2019	Detected	1 : 20480	1 : 2	Neg
2019	Detected	1 : 20480	1 : 4	Neg
2019	Detected	1 : 20480	1 : 4	Neg
2019	Detected	1 : 20480	1 : 32	Neg
2020	Detected	1 : 20480	1 : 16	Neg