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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Pediatr Clin North Am. 2015 Feb;62(1):139–165. doi: 10.1016/j.pcl.2014.09.010

Table 5.

Variability in risk stratification across pediatric Hodgkin lymphoma clinical trials consortia

Risk IA IB IIA IIB IIIA IIIB IVA IVB
EuroNet C1 Low
Int E E E
High E E

COG Low
Int E
X
E
X
High

St Jude Stanford DFCI Low
Int E
mX
E
mX
>2
High

Abbreviations: E, extranodal extension; Int, intermediate; mX, mediastinal bulk; X, bulky disease (peripheral >6 cm and mediastinal).