Radiation Oncology

DCIS

Questions discussed in this category

For a small focally positive DCIS margin in the setting of invasive disease and negative invasive margins, not undergoing re-excision, what boost dose would you use?

What if positive margin is felt to be from a DCIS skip lesion (initial DCIS margins widely negative but small focus DCIS found in additional tissue wi...

1 Answer available

How do you approach the discussion of omission vs. inclusion of adjuvant radiation in patients with low to intermediate-grade DCIS?

For additional reading, see JCO OGR (11/2021) by Drs. @Warren and @Bellon reviewing the landscape of adjuvant treatment after lumpectomy for DCIS and ...

7 Answers available

How does the potential for a patient to accept or forego adjuvant tamoxifen factor into your recommendations on adjuvant RT for DCIS?

Are there specific patient populations in which you may feel comfortable with a patient selecting only one adjuvant therapy approach (tamoxifen vs RT)...

3 Answers available

How are you using predictive tests such as DCISionRT (PreludeDx) or OncotypeDX DCIS in the management of DCIS?

What advantages/disadvantages are there between assays or over traditional clinical pathologic factors? What other concerns do you have?For additional...

4 Answers available

How would you manage an elderly female patient with a remote history of synchronous bilateral invasive ductal carcinoma with a new triple-negative recurrence in the left breast and axilla with extension to the contralateral breast?

The patient had been treated with conventional fractionation to bilateral breasts in the past as treatment for her synchronous IDC.She is currently in...

2 Answers available

How do you approach the decision to boost patients diagnosed with DCIS?

What factors do you consider?Is your thought process at all different from your approach to boost with IDC? Do you apply TROG 7.01 data (age <...

4 Answers available

What resection margins are required for DCIS with a component of invasive disease?

What resection margins are required for pure DCIS with adjuvant RT? What resection margins are required for pure DCIS without RT? For additi...

5 Answers available

Papers discussed in this category

Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2015-03-01

RTOG 9804: a prospective randomized trial for good-risk ductal carcinoma in situ comparing radiotherapy with observation.

Cancers (Basel), 2021 Dec 03

Prognostic Risk Assessment and Prediction of Radiotherapy Benefit for Women with Ductal Carcinoma In Situ (DCIS) of the Breast, in a Randomized Clinical Trial (SweDCIS).

J Clin Oncol, 2021 Aug 18

Randomized Phase III Trial Evaluating Radiation Following Surgical Excision for Good-Risk Ductal Carcinoma In Situ: Long-Term Report From NRG Oncology/RTOG 9804.

Journal of the National Cancer Institute, 2011-03-16

Long-term outcomes of invasive ipsilateral breast tumor recurrences after lumpectomy in NSABP B-17 and B-24 randomized clinical trials for DCIS.

Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2015-11-20

Surgical Excision Without Radiation for Ductal Carcinoma in Situ of the Breast: 12-Year Results From the ECOG-ACRIN E5194 Study.

Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2014-05-10

Margins for breast-conserving surgery with whole-breast irradiation in stage I and II invasive breast cancer: American Society of Clinical Oncology endorsement of the Society of Surgical Oncology/American Society for Radiation Oncology consensus guideline.

J. Clin. Oncol., 2014 Feb 10

Society of Surgical Oncology-American Society for Radiation Oncology consensus guideline on margins for breast-conserving surgery with whole-breast irradiation in stages I and II invasive breast cancer.

J. Clin. Oncol., 2016-11-20

Society of Surgical Oncology-American Society for Radiation Oncology-American Society of Clinical Oncology Consensus Guideline on Margins for Breast-Conserving Surgery With Whole-Breast Irradiation in Ductal Carcinoma In Situ.

Ann. Surg.,

Relationship Between Margin Width and Recurrence of Ductal Carcinoma In Situ: Analysis of 2996 Women Treated With Breast-conserving Surgery for 30 Years.

Ann Surg, 2019 Jan

Ductal Carcinoma In Situ and Margins <2 mm: Contemporary Outcomes With Breast Conservation.

Anticancer Res,

No Ink on Ductal Carcinoma : A Single Centre Experience.

Cancer, 2018-04-01

Margins in breast cancer: How much is enough?

Lancet Oncol., 2015-03-01

Breast-conserving surgery with or without irradiation in women aged 65 years or older with early breast cancer (PRIME II): a randomised controlled trial.

Radiother Oncol, 2021 Jan

Adjuvant breast radiotherapy, endocrine therapy, or both after breast conserving surgery in older women with low-risk breast cancer: Results from a population-based study.

Lancet Oncol, 2010 Dec 07

Effect of tamoxifen and radiotherapy in women with locally excised ductal carcinoma in situ: long-term results from the UK/ANZ DCIS trial.

Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2012-04-20

Adjuvant tamoxifen reduces subsequent breast cancer in women with estrogen receptor-positive ductal carcinoma in situ: a study based on NSABP protocol B-24.

Lancet (London, England), 2016-02-27

Anastrozole versus tamoxifen in postmenopausal women with ductal carcinoma in situ undergoing lumpectomy plus radiotherapy (NSABP B-35): a randomised, double-blind, phase 3 clinical trial.

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