Radiation Oncology
Expert insights on radiation treatment planning, techniques, toxicity management, and multimodal cancer care.
Recent Discussions
Do you taper memantine after completion of 24 weeks of therapy?
Tapering is recommended when discontinuing some medications used in the management of dementia such as cholinesterase inhibitors. There are anecdotal cases of “discontinuation syndrome” after abrupt cessation of memantine in patients with dementia. However, this alone does not prove that a slow tape...
In light of the SHAPE trial results, how would you manage a patient with an incidentally diagnosed FIGO IA1 cervical cancer after simple extrafascial hysterectomy/BSO?
Without question, I would recommend that this patient receive pelvic RT and probably cuff brachytherapy as well. The SHAPE trial (NCT01658930) enrolled "low risk" patients, but they allowed LVSI patients into the trial, even though this is a high risk feature for local recurrence. There were approxi...
How well does a negative non-contrast MRI of the brain exclude metastasis in a patient with squamous cell carcinoma of the lung?
I don't think the question has enough information to give a good answer. For example, if it was a T3, N2 NSCLC, or a small cell, then "yes" I'd repeat the MRI with contrast. On the other hand, if it was a T1, N0 NSCLC, then "no", I wouldn't. In other words, if I thought there was a real risk of havi...
How would you approach adjuvant therapy for a fully resected vulvar carcinoma with a single positive lymph node?
There is not a simple answer to this question. In most cases, omitting adjuvant therapy is appropriate, but in certain cases, adjuvant radiation therapy + chemotherapy is advised, even in the presence of only a single positive lymph node. It has been over 30 years since Homesley and co-workers’ 1986...
Do you need renal biopsy before SBRT for RCC suspicious cancer?
Yes. The teaching is usually that ≈ 20% of small renal masses (<4 cm) are benign, and this rate goes down as size increases (Thompson et al., PMID 19286217). Features such as contrast enhancement, tumor location, and sex can help to improve the malignant risk potential of these lesions, but no combi...
Do you offer consolidation chemotherapy prior to durvalumab in locally advanced, unresectable NSCLC?
I do not offer consolidation chemotherapy to patients prior to durvalumab in patients with locally advanced, unresectable NSCLC. The PACIFIC trial was a randomized phase III trial that established the role of consolidation durvalumab after definitive chemoradiation for patients with stage III NSCLC....
How would you manage treatment of keloid that is so large it requests a graft?
16 Gy/4 fractions
Does postoperative radiation within 24 hours of a skin graft with a keloid resection increase the risk of graft failure?
The amount of radiation required to prevent keloid recurrence after excision is lower than what would be expected to compromise a skin graft. The studies cited are dealing with postoperative radiotherapy for cancer, where radiation doses are required to be higher than what is used for a keloid, and ...
How does positive peritoneal washings factor into your treatment decisions regarding pelvic radiation and/or chemotherapy?
At this point, for patients who lack other adverse factors, we do not change management based on positive cytology for endometrioid histology.
What is your preferred treatment for non-contiguous Stage IIA Nodular Lymphocyte Predominant Hodgkin's Lymphoma (NLPHL)?
Prognosis of patients with early stage NLP-HL is excellent with any treatment, and multi-institutional studies have shown 5-year survival rates of 98% (Michael S. et al. Stage I-II nodular lymphocyte-predominant Hodgkin lymphoma: a multi-institutional study of adult patients by ILROG. Blood 2020; 13...