Table 4. Immunoglobulin isotype protein... | American Society of Hematology

Table 4.

Immunoglobulin isotype protein expression

Case no.	Flow cytometry	Immunohistochemistry, % of positive tumor cells
Case no.	Flow cytometry	IgM	IgD	IgG	IgA	Light chain
5049	sIgM/D/κ	100	−	30	−	100 κ
5126	SigM/λ	100	−	5-10	single cells^4-150	100 λ
5184	na	100	30	−	−	100 κ
5334	sIgM/D/κ	na^4-151	na^4-151	na^4-151	na^4-151	na^4-151

Case no.	Flow cytometry	Immunohistochemistry, % of positive tumor cells
Case no.	Flow cytometry	IgM	IgD	IgG	IgA	Light chain
5049	sIgM/D/κ	100	−	30	−	100 κ
5126	SigM/λ	100	−	5-10	single cells^4-150	100 λ
5184	na	100	30	−	−	100 κ
5334	sIgM/D/κ	na^4-151	na^4-151	na^4-151	na^4-151	na^4-151

na indicates not available; − indicates negative.

F4-150

Indicates that single IgA-bearing cells were detected. Because there were no positive confluent groups of cells, however, it was not possible to definitely attribute these cells to the tumor cell population on morphological grounds.

F4-151

The morphology in case 5334 was poorly maintained in the paraffin-embedded material.

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