Bouzón Alejandro A, Iglesias López Á, Acea Nebril B, García Jiménez ML, Díaz Carballada CC, Varela Romero JR. Underestimation of invasive breast carcinoma in patients with initial diagnosis of ductal carcinoma in situ: Size matters.
Cir Esp 2021;
99:S0009-739X(20)30350-X. [PMID:
33541705 DOI:
10.1016/j.ciresp.2020.10.020]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 11/20/2022]
Abstract
INTRODUCTION
The aim of our study was to identify those patients with preoperative diagnosis of ductal carcinoma in situ (DCIS) and high risk of upstaging to invasive breast carcinoma (IBC), in whom sentinel lymph node biopsy (SLNB) should be considered.
METHODS
One-hundred and five DCIS patients treated with breast-conserving surgery (BCS) or mastectomy were studied. Preoperative features of the tumors were analyzed to investigate its association with underestimation of IBC on final pathology.
RESULTS
Overall, the underestimation rate of IBC was 16.2%. The underestimation rate was highest in lesions with initial size >2 cm compared with those with size ≤2 cm (26.8% vs. 4.1%, respectively; p < 0.003). Eighty-eight patients (83.8%) underwent concurrent SLNB and only one case had lymph node involvement (1.1%).
CONCLUSIONS
SLNB should be considered in DCIS patients receiving BCS with lesions greater than 2 cm since approximately one in four will harbor an IBC.
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