Table 1. B-B4 Antigen Expression in RS... | American Society of Hematology

Table 1.

B-B4 Antigen Expression in RS Cells

Histologic Type	Phenotype^*	Percentage of B-B4 Positive RS Cells
(no. of cases)	(no. of cases)	0	<10	10-25	25-50	50-75	>75
NLP HD (8)	B (8)	8
NS HD (32)	B (5)			2^†	1^†	2^‡
	U (27)		2^†	9ρ	7ρ	8^‡	1^‡
MC HD (16)	B (2)		1^†	1ρ
	U (14)		5^†	4^†	5ρ

Histologic Type	Phenotype^*	Percentage of B-B4 Positive RS Cells
(no. of cases)	(no. of cases)	0	<10	10-25	25-50	50-75	>75
NLP HD (8)	B (8)	8
NS HD (32)	B (5)			2^†	1^†	2^‡
	U (27)		2^†	9ρ	7ρ	8^‡	1^‡
MC HD (16)	B (2)		1^†	1ρ
	U (14)		5^†	4^†	5ρ

Abbreviations: HD, Hodgkin's disease; NLP, nodular lymphocyte predominance; NS, nodular sclerosis; MC, mixed cellularity.

U, undetermined.

Weak expression.

Strong expression in most RS cells.

ρ Weak to moderate expression.