752 / 1708
Radiotherapy Dose Recommendations in
IRS-IV and IRS-V
Group
Radiotherapy Dose
(Gy)
IRS-IV
Radiotherapy
Dose (Gy)
IRS-V
I (embryonal)
0
0
I (alveolar)
41.4
36
IIA (+ margins)
41.4
36
IIB (+ nodes,
resected)
41.4
41.4
III (orbit)
50.4 or 59.4
45
III (non-orbit)
50.4 or 59.4
50.4
IV
50.4
50.4