TABLE 2

Marrow Status Pretreatment Defined by Staging PET and BMB

PET	Total patients	BMB−	BMB+	Marrow involved by lymphoma
Negative	241	231	10	10
Positive, focal	68	47	21	68
Positive, diffuse	18	14^*	4	4
Total	327	292	35	82

↵* These 14 cases were classified as not having marrow involvement by lymphoma.