Hematological Malignancies

Incidence

• 5% of all HL • 1.5 / 1m population/ y • Recently recognized category: – 1944:

Jackson & Parker: granuloma variant of HL

– 1994: – 2001:

REAL classification (CD20+ LP, L&H/ popcorn cells)

WHO (separated from cHL as NLP)

• No prospective studies: – Re-analysis of previous studies – Institutional / registry based retrospective studies