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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 Group

Histology

Stage

Group

Low

Embryonal

1

I, II, III

 

Embryonal

2, 3

I, II

Intermediate

Embryonal

2, 3

III

 

Alveolar

1, 2, 3

I, II, III

High

Embryonal or Alveolar

4

IV

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BMC Pediatrics

ISSN: 1471-2431

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