How do you approach post operative radiation therapy to someone with head and neck cancer who has high risk of local recurrence who also has scleroderma?

While the risk of morphea (skin and subcutaneous damage ) after radiotherapy to breast ca is well documented, there are very few data about the risk in HNC. Searching Pubmed for: scleroderma, radiotherapy, and head neck, I get only 2 references, one of which is a case report of a severe late toxicit...