paediatrics Brussels 17

COG RT Guidelines for Metastasis

Disease site

RT Field

RT Dose

Liver

Involved portion + 2 cm margin

1980 cGy/11 fx

Lung, age > 18mos Bilateral lung

1200 cGy/8 fx

Lung, age < 18 mos Bilateral lung if no response to chemo

900 cGy/ 6 fx

Lymph nodes (Gross tumor, not resected)

Involved nodes

1980 cGy/ 11 fx

Brain

Whole brain +/- boost

2160 cGy/ 17 fx (WB) 1080 cGy/6 fx (boost) if < 16 yrs 3060 cGy/ 17 fx (WB, if > 16 yrs)

Bone

Lesion + 3 cm margin 2520 cGy/14 fx (< 16 yrs) 3060 cGy/17 fx (> 16 yrs)