Radiation Oncology
Expert insights on radiation treatment planning, techniques, toxicity management, and multimodal cancer care.
Recent Discussions
In a patient with borderline resectable pancreatic adenocarcinoma s/p 10 cycles FOLFOX and aborted Whipple due to locally advanced disease, do you recommend dose escalation beyond 54 Gy?
Yes, there is no contraindication to giving an ablative dose after exploration. 54 Gray is a palliative dose, which has not improved overall survival based on the LAP07 trial. While it's fair to say that we do not know the definition of definitive or ablative in LAPC, we have published OS results ve...
Do you routinely recommend consolidative radiation to bulky site(s) in the setting of advanced stage DLBCL?
How radiation therapy (RT) should be incorporated into the management of patients with advanced DLBCL continues to be investigated. In the setting of widespread, non-bulky disease, when a complete response is achieved with systemic therapy, I don't recommend consolidation RT. Though controversial, I...
In what situations do you order an Oncotype DX DCIS score for a patient with DCIS?
This is an excellent question. I suspect there will be many takes on this question since there is considerable controversy about omitting RT for DCIS in general. Here's what I think we know.Let's review the clinical data from the Oncotype Dx DCIS Score.1) Solin L et al JNCI 2013: A subset of the pat...
Should SBRT for bone metastasis be delivered daily, or every other day?
Canadian/Australian study gave 24 Gy in 2 fractions on consecutive days and no excessive toxicity was noted.I schedule them daily, but if there is a patient convenience issue, QOD is reasonable.It is very interesting, however - there is conflicting data on the efficacy of QD vs QOD for SBRT for lung...
How do you explain the risks and benefits of palliative radiation therapy to patients with fungating breast masses?
The value of palliative RT in these patients is to dry up oozing and bleeding and RT is very effective in achieving that goal. I have had success in these patients almost all the time and my usual dose is 30-39 Gy in 10-13 fractions.This study gives a prospective dataset for fractionation and pallia...
Can a PSA bounce be seen shortly after SBRT to prostate cancer oligometastases while on androgen deprivation therapy?
I would not consider it a "bounce" if it happens shortly after treatment because the timing of a post-treatment bounce is later. If the PSA is higher than pre-treatment baseline soon after metastasis-directed SBRT, then you are likely observing one of two scenarios. First, the pre-treatment baseline...
What is your approach to consolidation for localized small cell bladder cancer after neoadjuvant cisplatin and etoposide?
There is limited data with regard to the best management of these patients. Most data is retrospective and has an inherent bias. That being said, there seems to be a benefit for surgical resection after NAC (Patel et al., 24036236), with RT a consideration if surgery is not an option. In a small ser...
Given the new ASCO guidelines on SNB in early stage breast cancer, how does the omission of SNB in patients aged 50-70 impact your adjuvant radiation recommendations?
If the patient is otherwise a good candidate for APBI (age > 50, pT1 tumor, ER+, HER2 negative, Recurrence score low and intending to take endocrine therapy) that was clinically node negative and ultrasound axilla negative, I feel completely comfortable treating with APBI post lumpectomy with negati...
Would you offer a third course of palliative radiation after two courses of 8 Gy in 1 fx?
There are rarely definitive answers to questions like these, but I’ll do my best to detail some of my thoughts on how I would approach this situation, since I was asked to fill this request. I would usually have a conversation with a patient about the risks and benefits, and then utilize a shared, i...
Do you ever treat cervical nodes above the standard supraclavicular field for breast cancer patients?
In the setting of biopsy-proven supraclavicular or cervical nodal disease, I do extend my fields cranially to include these nodes. I typically include the entire neck level based on head and neck contouring atlases and extend the cranial border at least 1 cm superior to the highest node. If nodes ar...