Abstract
Background: Previously, small studies have found that BRCA1 and BRCA2 breast tumors differ in their pathology. Analysis of larger datasets of mutation carriers should allow further tumor characterization. Methods: We used data from 4,325 BRCA1 and 2,568 BRCA2 mutation carriers to analyze the pathology of invasive breast, ovarian, and contralateral breast cancers. Results: There was strong evidence that the proportion of estrogen receptor (ER)-negative breast tumors decreased with age at diagnosis among BRCA1 (P-trend = 1.2 x 10(-5)), but increased with age at diagnosis among BRCA2, carriers (P-trend 6.8 x 10(-6)). The proportion of triple-negative tumors decreased with age at diagnosis in BRCA1 carriers but increased with age at diagnosis of BRCA2 carriers. In both BRCA1 and BRCA2 carriers, ER-negative tumors were of higher histologic grade than ER-posit Conclusions/Impact: Pathologic characteristics of BRCA1 and BRCA2 tumors may be useful for improving risk-prediction algorithms and informing clinical strategies for screening and prophylaxis. Cancer Epidemiol Biomarkers Prev; 21(1); 134-47. (C) 2011 AACR.
| Original language | Undefined/Unknown |
|---|---|
| Pages (from-to) | 134-147 |
| Number of pages | 14 |
| Journal | Cancer Epidemiology Biomarkers & Prevention |
| Volume | 21 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2012 |
Research programs
- EMC MGC-02-96-01
- EMC MM-03-47-11
- EMC MM-03-86-01