Table 1.

Cases of reversible pulmonary hypertension (PH) with multiple myeloma (MM) or smoldering MM (SMM)

		Diagnosis date
Case	Age at diagnosis, years	SMM or MM	PH	MM type	Plasma cells, %	M-spike, g/dL	Other	PH (RVSP), mmHg
1	63	9/19/2007	2007	IgG λ	20–30	2.1	Sleep apnea, membranoproliferative glomerulonephritis	84
2	59	4/28/2003	2004	IgG κ	10	1.4	Scleromyxedema	106
3a	58	11/11/1996	1996	IgG κ	10–15	1.02	Dermatomyositis	105
4b	31	3/2003	2003	IgG λ	80	3.3	…	80

^NoteRVSP: right ventricular systolic pressure; IgG: immunoglobulin G.

^aPrevious Mayo Clinic case.

^bItaly case.