Table 1.

Clinical features of patients.

Case number	Sex	Age	M‐protein	D‐S stagea	ISSb stage	Percentage of plasma cells in BMc at diagnosis
1	Female	50	IgA λ	IIA	I	31%
2	Male	40	λ	IIIA	I	55%
3	Female	69	IgG λ	IIIB	II	59.5%
4	Male	63	κ	IIIA	I	40.5%
5	Male	53	IgG λ	IIIB	III	28.5%

^aD‐S stage, Durie–Salmon stage.

^bISS, International Staging System.

^cBM, bone marrow.