Extraosseous spinal epidural plasmocytoma associated with multiple myeloma: Two case reports

Table 2 Imaging characteristics of extraosseous epidural myeloma

No.	Location	IF and paravertebral extension	T1WI	T2WI	Enhancement	Vertebrae infiltration
1	L3 posterior C7-T4 posterior1	No	N/A	Hyperintense	/	L2-L3
		Yes	N/A	Hyperintense	/	N/A
2	C7-L2/3 posterior	Yes	Isointense	Hyperintense	/	Diffuse
3	C7-T2 posterior	No	Isointense	Isointense	No	No
4	L5-S1 N/A	N/A	N/A	N/A	N/A	No
5	T4-T6 posterior	Yes	Hypointense	Hyperintense	Moderate	No
6	T6-T7 posterior	No	N/A	N/A	Yes	No
7	C7-T3 posterior	No	Isointense	Isointense	Moderate	Diffuse
8	T12-L1 posterior	No	Isointense	Isointense	/	Diffuse

¹Lesion recurrence; IF: Intervertebral foramen; T1WI: T1-weighted imaging; T2WI: T2-weighted imaging.