

OARs not preventable toxicities
Fujiwara M et al. – J Rad Res- 2015
Esophagus
:
Is the target!!
stenosis at the level of the previuos tumor
DYSPHAGIA: 16%
Thyroid
:
in cervical and upper esophagus
entire prescribed dose
HYPOTHIROIDISM: 36%
Dose > 30Gy