To evaluate the clinical efficacy of single-port endoscopic resection of breast mass by retromammary space approach.

The clinical data of 20 patients with large breast masses (≥2.5 cm) or multiple breast lesions in the Chengdu Women’s and Children’s Central Hospital from March to August 2022 were retrospectively analyzed. The preoperative imaging evaluation confirmed breast lesions of BI-RADS 3 or 4A. All patients received the single-port endoscopic resection of breast mass by retromammary space approach. The clinical efficacy was evaluated by the following parameters: operation time, complications and patient satisfaction with breast appearance.

The operation time was (118.0±34.1) min, and intraoperative blood loss was (15.3±7.3) ml in 20 cases. The postoperative pathology confirmed breast fibroadenoma in 20 cases. All patients were followed up for (111.9±47.3) d (range: 37-206 d). After operation, 4 patients developed subcutaneous emphysema, but no postoperative bleeding (ecchymosis, hematoma), skin burns and incision infection were observed. The breast of affected side showed good cosmetic effect, with small surgical scars. The score of patient satisfaction was 15 in 19 cases and 14 in one case (total score: 15).

Single-port endoscopic resection by retromammary space approach has the advantages of less blood loss, low incidence of postoperative complications and high patient satisfaction, which is a safe option for patients with large mass or multiple lesions, or patients with high requirements for postoperative breast appearance.