Breast Cancer in Pregnant Young Women: Clinicopathological Profile, Survival, and Pregnancy Outcomes.

As for hormonal status, tumors classified as ER- and PgR-negative were more common (77.8% and 100%, respectively), and only one-third were HER2+ tumors, although the differences did not reach statistical significance (all, p > 0.05), except for PgR (p = 0.019), as shown in Table 2 .

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Patients with ER-negative tumors showed a trend toward poorer five-year survival than for those with ER-positive tumors, DFS was 56% vs. 83% (p = 0.609) and OS was 50% vs. 71% (p = 0.646), respectively.

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