Diffusion weighted magnetic resonance imaging demonstrates tumor response following palliative embolization of a recurrent shoulder plasmacytoma

Table 1 Results of serum electrophoresis

Clinical status	Follow-up time (weeks)	FLCκ (mg/l)^b	k/λ ratio^b
Baseline	0	4570	4009
Chemotherapy^a	11	145	NA
Pre-embolization	28.5	913	78.7
Post-embolization	31	349	8.18
Control	35	350	36.57

The characteristic free kappa light-chain (FLCκ) level returned close to the normal range after embolization.
^aThe test was taken following two cycles of VDT-PACE chemotherapy.
^bThe normal range is 3.3 to 19.4 mg/l for FLCκ and 0.26 to 1.95 for the k/λ ratio.

ISSN: 1477-7819