Radiotherapy
Radiotherapy will be delivered on a linear accelerator in prone or supine position, preferably with full bladder. The use of a belly board is allowed. Isocentric 3 or 4 fields, as well as an IMRT technique is allowed, as long as all beams are treated on a daily basis. The dose distribution and calculation should be performed on CT or MR and specified according to the ICRU 50 guidelines.