Radiation Oncology
Expert insights on radiation treatment planning, techniques, toxicity management, and multimodal cancer care.
Recent Discussions
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...
What factors do you take into account when deciding the length of adjuvant temozolamide in GBM?
The field is evolving from 12 cycles to 6 for IDH-wildtype GBM in recent years, on the basis of some retrospective studies and notably the prospective Spanish study GEINO 14-01 - there does not seem to be much OS benefit, and there are also toxicity concerns (myelosuppression, hypermutation). Extens...
Can RT to non-bulky sites be omitted in an early stage (stage I or II) classical Hodgkin's lymphoma case with a CR by PET/CT?
Randomized studies have consistently demonstrated that combined modality therapy is superior to chemotherapy alone in regards to progression-free survival in early-stage Hodgkin lymphoma. The magnitude of the benefit varies across studies, but a relative risk reduction of ~50% can be expected which ...
What treatment sequence do you follow for patients with rectal cancer who are candidates for both PROSPECT and TNT/Watch and wait?
Thanks for this question. I am not sure whether this is up to us. This is up to our patients to choose which modality they would like to omit (radiation vs surgery). I would point out that a good quality MRI rectum should be performed to r/o any T4/N2 disease or potential requirement for APR. Otherw...
Is it necessary to prescribe a steroid taper after two weeks of high-dose prednisone (60 mg daily)?
Interesting question. Not being an endocrinologist, I don't have the expertise to advise but the reference below makes the statement that even short-term steroids can be an issue. I suspect that if you have to stop abruptly from 60 mg daily for 2 weeks, it would probably be fine in most instances bu...