Residual DCIS Versus No Residual Breast Tumor After Neoadjuvant Chemotherapy in ypN0 Breast Cancer: A Retrospective Clinical, MRI, and Survival Comparison
Background/Objectives: The prognostic significance of residual ductal carcinoma in situ (ypTis) compared with no residual tumor in the breast (ypT0) after neoadjuvant chemotherapy (NAC) remains uncertain. We compared clinicopathological, MRI, treatment, and survival outcomes between these groups. Methods: This single-c...