Radiation Oncology
Expert insights on radiation treatment planning, techniques, toxicity management, and multimodal cancer care.
Recent Discussions
How would you approach a vulvar cancer with para-aortic and pelvic nodes?
I have treated a few patients with curative intent if ECOG 0-1. Especially if HPV positive. Below is the link to outcome for anal cancer with pa node involvement.Holliday et al., PMID 29907489
For adjuvant radiation decision making purposes, how is the "Lower Uterine Segment" (LUS) defined?
We have always used the pathologist's description of LUS (fundus, body, LUS, and cervix). That being said, I don’t use LUS as risk factor for deciding adjuvant treatment except in borderline cases where may lean towards brachytherapy if otherwise a candidate for observation.
What are your top takeaways in Breast Cancer from ASCO 2022?
DESTINY-Breast04: it is phase III study of Trastuzumab deruxtecan (T-DXd) vs treatment of physician’s choice in HER2-low metastatic breast cancer (MBC). This study showed improved progression-free survival (PFS) and overall survival (OS) with T-DXd vs standard therapy in this patient population. T-...
What are your top takeaways in GI Cancers from ASCO 2022?
1. DYNAMIC study: I believe circulating tumor DNA (ctDNA) will dramatically improve personalized medicine for cancer patients. This study confirmed that ctDNA-based adjuvant chemo treatment significantly decreases the patients who need/are recommended for adjuvant treatment (50% reduction) without c...
What are your top takeaways in GU Cancers from ASCO 2022?
1. Bladder cancer. Potential new non-muscle invasive bladder cancer immunotherapy with N-803, an IL-15 superagonist plus BCG. Abstract 4508. Demonstrated striking complete and durable remissions (70%), bladder preservations over 1-2 years of follow up (>90% cystectomy free survival), favorable toxic...
Do you have particular recommendations for management of a nipple piercing during adjuvant breast radiation?
I have never had a case where this was an issue (i.e., piercing done during the RT). Nevertheless, I would consider this similar to any small wound (e.g. biopsy) within a site being actively irradiated. I certainly have done punch biopsies during chest wall RT and not do not recall having problems. ...
In patients with CML on imatinib and newly diagnosed breast cancer now requiring radiation therapy, should we hold imatinib?
There's not a lot of data regarding the best course of action in these rare situations. Anecdotally, I've had one CML patient who had been on dasatinib and was diagnosed with breast cancer a year or two after her CML diagnosis. Her local oncologist did hold her TKI while she was receiving radiation ...
How would you approach radiation to a thoracic tumor adjacent to an aortic dissection?
Address the aortic dissection and treat the tumor if the patient survives.
What adjuvant radiation modality would you select for a grade 2 endometrial cancer with small nodule in the fallopian tube?
She would get chemotherapy for stage IIIA disease. For RT, in the past, used to offer EBRT after chemotherapy but now, if surgically staged with nodal assessment, would favor brachy alone.
In metastatic/recurrent clear cell carcinoma with a solitary site of metastasis to the bone when, if ever, do you consider local therapy adequate and hold systemic therapy?
If I have a patient with a treated solitary metastatic site in RCC (bone or otherwise), I generally give local therapy and historically would not give systemic therapy. A point of discussion would be use of adjuvant pembro in this setting. While bone mets were not included in KEYNOTE-564 resected M1...