Abstract P3-13-08: Usefulness of periareolar zigzag incision in oncoplastic breast-conserving surgery

Abstract

Abstract Background Breast-conserving surgery (BCS) has been performed as a standard procedure because the addition of radiation therapy after breast-conserving surgery in early breast cancer patients is similar to that of mastectomy.The surgical methods for breast cancer have been developed in recent years, and the cosmetic aspect has become important.Several incisions are used to reduce the scar to the incision site during BCS. The periareolar incision is often used when the small tumor relatively close to the nipple. However, periareolar incision does not have sufficient field of sight, which can result in difficult or impossible operations if the tumor is large or far from the nipple. In plastic surgery, various methods such as zigzag incisions have been recommended to achieve satisfactory esthetic results. The periareolar zigzag incision has the advantage of a not only good surgical field but also contributed to better surgical scars. The purpose of this study was to evaluate the oncological safety of procedures by studying the status of the surgical margins of the excised tumor specimen and reduces the need for further surgery Methods From January 2016 to November 2017, we conducted a survey of female patients who underwent BCS using zigzag incision. Patients with exclusion criteria were excluded from this study if they had a Patients with bilateral breast cancer or neoadjuvant chemotherapy was included in the study. Intraoperative frozen section margin was evaluated in all patients and additional resection was performed when the positive margin was present. Final margin status was determined by examination of the permanent paraffin-embedded sections. In patients with invasive breast cancer or relatively large carcinoma in situ, axillary surgery was performed according to the presence of axillary metastasis. Patients characteristics, tumor characteristics, operative time, size of the specimen and the distance from the tumor to nipple were evaluated Results 393 patients were enrolled in the study, including 9 patients with bilateral breast cancer, and a total of 402 cases of BCS surgery were analyzed. Thirty-five patients received neoadjuvant chemotherapy. The median age of the patients was 51 (range: 25-84 years), the median time of operation was 72 minutes in patients who did not undergo axillary surgery or sentinel node biopsy only, and 83 minutes in patients who underwent axillary node dissection or supraclavicular node dissection. The median tumor size was 1.6 cm (range: 0-8.8 cm), median tumor distance from the nipple was 3.0 cm (range: 0.4-8.1 cm), mean excised specimen sized was 5.0 cm (range: 0.9-15.0 cm). Frozen biopsy of the resection margin during surgery revealed tumor-positive in 69 (17.2%) cases and re-excision was performed. All patients were discharged with no sign of infection or skin necrosis. Conclusions The periareolar zigzag incision technique has good cosmetic results and provides a sufficient surgical field, which can be useful for removing relatively large tumors or tumors far from the nipple. Citation Format: Ko B, Kim H, Chung I, Lee S, Kim J, Lee J, Son B, Ahn SH. Usefulness of periareolar zigzag incision in oncoplastic breast-conserving surgery [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P3-13-08.