Breast Cancer Recurrence Study
Author Information
Author(s): Bijker N, Peterse J L, Duchateau L, Robanus-Maandag E C, Bosch C A J, Duval C, Pilotti S, van de Vijver M J
Primary Institution: The Netherlands Cancer Institute
Hypothesis
How do the histological characteristics and marker expressions of primary ductal carcinoma in situ (DCIS) compare to their local recurrences after breast-conserving therapy?
Conclusion
Most local recurrences of DCIS are related to the original tumor's histology and marker expression, indicating that they often reflect the outgrowth of residual DCIS.
Supporting Evidence
- 62% of cases showed concordant histology between primary DCIS and local recurrence.
- 63% of cases had identical marker expression.
- 11% of recurrences developed at a distance from the primary DCIS but still showed similar histological profiles.
- 5 patients developed well-differentiated DCIS or grade I invasive carcinoma after poorly differentiated DCIS.
Takeaway
This study looked at breast cancer and found that when it comes back, it usually looks a lot like the first time it appeared.
Methodology
Histology was reviewed for 116 cases, and marker expression was assessed for 71 cases from patients in the EORTC trial 10853.
Limitations
The study only reviewed a limited number of cases and may not represent all patients with DCIS.
Digital Object Identifier (DOI)
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