Skip to main content

Table 3 COG risk group classification

From: Radiation therapy is an important factor to improve survival in pediatric patients with head and neck rhabdomyosarcoma by enhancing local control: a historical cohort study from a single center

Risk GroupHistologyStageGroup
LowEmbryonal1I, II, III
 Embryonal2, 3I, II
IntermediateEmbryonal2, 3III
 Alveolar1, 2, 3I, II, III
HighEmbryonal or Alveolar4IV