Use of Magnetic Resonance Imaging for Evaluating Residual Breast Tissue After Robotic-Assisted Nipple-Sparing Mastectomy in Women With Early Breast Cancer

Prospective studies on postoperative residual breast tissue (RBT) after robotic-assisted nipple-sparing mastectomy (R-NSM) for breast cancer are limited. RBT presents an unknown risk of local recurrence or the development of new cancer after curative or risk-reducing mastectomies. This study investi...

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Bibliographic Details
Published in:Korean journal of radiology 2023-07, Vol.24 (7), p.640-646
Main Authors: Wu, Wen-Pei, Lai, Hung-Wen, Liao, Chiung-Ying, Lin, Joseph, Huang, Hsin-I, Chen, Shou-Tung, Chou, Chen-Te, Chen, Dar-Ren
Format: Article
Language:English
Subjects:
Adult
Breast cancer
Breast Imaging
Breast Neoplasms - diagnostic imaging
Breast Neoplasms - pathology
Breast Neoplasms - surgery
Female
Hospitals
Humans
Magnetic Resonance Imaging
Mastectomy
Mastectomy - methods
Middle Aged
Nipples - diagnostic imaging
Nipples - pathology
Nipples - surgery
Patients
Pilot Projects
Prospective Studies
Retrospective Studies
Robotic Surgical Procedures
Robotics
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Summary:Prospective studies on postoperative residual breast tissue (RBT) after robotic-assisted nipple-sparing mastectomy (R-NSM) for breast cancer are limited. RBT presents an unknown risk of local recurrence or the development of new cancer after curative or risk-reducing mastectomies. This study investigated the technical feasibility of using magnetic resonance imaging (MRI) to evaluate RBT after R-NSM in women with breast cancer. In this prospective pilot study, 105 patients, who underwent R-NSM for breast cancer at Changhua Christian Hospital between March 2017 and May 2022, were subjected to postoperative breast MRI to evaluate the presence and location of RBT. The postoperative MRI scans of 43 patients (age, 47.8 ± 8.5 years), with existing preoperative MRI scans, were evaluated for the presence and location of RBT. In total, 54 R-NSM procedures were performed. In parallel, we reviewed the literature on RBT after nipple-sparing mastectomy, considering its prevalence. RBT was detected in 7 (13.0%) of the 54 mastectomies (6 of the 48 therapeutic mastectomies and 1 of the 6 prophylactic mastectomies). The most common location for RBT was behind the nipple-areolar complex (5 of 7 [71.4%]). Another RBT was found in the upper inner quadrant (2 of 7 [28.6%]). Among the six patients who underwent RBT after therapeutic mastectomies, one patient developed a local recurrence of the skin flap. The other five patients with RBT after therapeutic mastectomies remained disease-free. R-NSM, a surgical innovation, does not seem to increase the prevalence of RBT, and breast MRI showed feasibility as a noninvasive imaging tool for evaluating the presence and location of RBT.
ISSN:1229-6929
2005-8330
DOI:10.3348/kjr.2022.0708