Table 1: Laboratory findings and clinical information for four patients with IgD multiple myeloma: All IgD MM patients had high levels for SFLCs, and circulating plasma cells. Only the highest levels of free light chains are recorded in the table. All patients had multiple "monoclonal" bands, including patient 3 in whom IgD band overlapped transferrin band in beta region. The patient numbers are the same as in Figure 1.

	Patient 1	Patient 2	Patient 3	Patient 4
Age	70	68	75	69
Race	African American	White	White	White
Sex	Male	Female	Female	Male
Immunoglobulin type	IgD Lambda	IgD Lambda	IgD Lambda	IgD Kappa
Conc. of Ig D band	2.69 g	0.84 g	1.01 g (including transferrin)	2.26 g
IgD quantification mg/dL	5260	1960	244	2442
IgA mg/dL	38	26	67	16
IgG mg/dL	358	371	672	278
IgM mg/dL	20	20	65	15
Plasma cells in blood, %, range	10	3	4 to 22	2 to 7
Highest Kappa FLC mg/L	6.11	1.61	0.92	4110
Highest Lambda FLC mg/L	2347	5214	5925	0.61
Lytic lesions	None recorded	Femur & humerus	None recorded	Multiple
eGFR mL	19	70	7	31
Hemoglobin g/dL	7.9	6.8	8.8	8.7
Calcium mg/dL (Corrected for Alb)	15.4	11	11.1	10.6
Other diagnoses	Renal ca, Bladder rupture, HTN	Psoriasis	COPD, HTN, DM	Alcohol use
Survival in months	1	14	43	31