Basic Clinical Radiobiology 2017

Rectum

• Palliative reirradiation for recurrent rectal cancer (n=52) – Median reirradiation dose 30.6 Gy, – 2 × 1.2 Gy/f per day or 2 Gy/f per day • Significantly lower risk of late complications with hyperfractionated treatment delivery (2 × 1.2 Gy/day)

Lingareddy V et al. Int J Radiat Oncol Biol Phys 1997;38:785–90