Recurrent lung cancer:
Symptomatic recurrence after radiotherapy has been successfully retreated with fractionated stereotactic radiotherapy, producing high rates of symptomatic relief with minimal complications (
37,
38), though large doses delivered to the proximal pulmonary vessels or tracheobronchial tree are capable of producing severe or even fatal complications (
37), mandating caution when treating mediastinal lesions. It should be noted that CyberKnife® radiosurgery with
Synchrony respiratory tracking creates a more focal high dose region with a sharper margin than that created by the techniques described in these references, further reducing normal tissue complication risk with CyberKnife®.
Image adapted from
"Robotic Radiosurgery" - First Edition