Table 2. List of the most relevant antigens for the detection of aberrant plasma cells in multiple myeloma.

Antigen	Normal plasma cell immunophenotype	Aberrant plasma cell immunophenotype	Percentage of patients with aberrant phenotype	Reference
CD19	+	−	95%	30
				18
CD20	−	Dim +	17–30%	30
				22
CD27	++	− or dim +	40–68%	22
CD28	−/weak	+	15–45%	48
				109
CD33	−	+	15–18%	110
				111
CD38	++	Dim +	92%	62
				26
CD45	+	−	72–73%	62
				112
CD54	+	Dim +	60–80%	113
				114
CD56	−	++	60–76%	115
				116
				117
CD81	+	− or dim +	45%	42
				18
CD117	−	+	30–37%	37
				30
CD200	weak	+/++	65–86%	20
				118
SmIg	−	+	30%	26
CD319 (SLAMF7, CS1)	+	+	90–97%	119
				120
BCMA	+	+	100%	108