In fairness to all the ROs still relying upon 20th century studies, I saw this 2011 abstract
[quote]Although the results of more recent studies using contemporary treatment techniques and conformal delivery methods have been somewhat more promising, the role of re-irradiation after previous full-course radiotherapy is still considered investigational by many. Numerous questions remain unanswered, and practical guidelines for clinical decision-making are sparse.[/quote]
Practical Considerations in the Re-...eck Cancer: Who, Why, How, and How Much?
Unfortunately, I can't access the full study (okay, I could but I don't want to pay $30). I love the title though.
Charm