Oncologic Considerations for Safe Gender-Affirming Mastectomy: Preoperative Imaging, Pathologic Evaluation, Counseling, and Long-Term Screening.

SUMMARY: There remain significant gaps in the evidence-based care of patients undergoing gender-affirming mastectomy with regard to implications for breast cancer development and screening. The current clinical evidence does not demonstrate an increased risk of breast cancer secondary to testosterone therapy in transgender patients. Gender-affirmation mastectomy techniques vary significantly with regard to the amount of residual breast tissue left behind, which has unknown implications for the incidence of postoperative breast cancer and need for screening. Subcutaneous mastectomy should aim to remove all gross breast parenchyma, although this is limited in certain techniques. Tissue specimens should also be routinely sent for pathologic analysis. Several cases of incidental breast cancer after subcutaneous mastectomy have been described. There is little evidence on the need for or types of postoperative cancer screening. Chest awareness is an important concept for patients that have undergone subcutaneous mastectomies, as clinical examination remains the most common reported method of postmastectomy malignancy detection. In patients with greater known retained breast tissue, such as those with circumareolar or pedicled techniques, consideration may be given to alternative imaging modalities, although the efficacy and cost-utility of these techniques must still be proven. Preoperative patient counseling on the risk of breast cancer after gender-affirming mastectomy in addition to the unknown implications of residual breast tissue and long-term androgen exposure is critical. Patient awareness and education play an important role in shared decision-making, as further research is needed to define standards of medical and oncologic care in this population.

Evidence-based nipple-sparing mastectomy in patients with higher body mass index: Recommendations for a successful standardized surgery.

Nipple-sparing mastectomy is used with increasing frequency in the multidisciplinary treatment of patients with operable breast cancer. This technique allows to remove the entire glandular tissue preserving the skin envelope and the nipple-areola complex. Common indications to nipple-sparing mastectomy include extensive or multicentric disease, inability to obtain clear surgical margins with breast conserving-surgery, large tumor size with respect to the breast size, as well as cases with contraindications for radiotherapy as well as patient preference. Higher body mass index may cause longer operative times and increased risk of complications such as nipple-areola complex and skin flap ischemia. Repetitive performance of standardized tasks could optimize oncological and aesthetic outcomes and increase the chance of success.

Expanding the Criteria for Nipple-Sparing Mastectomy in Patients With Poor Prognostic Features.

BACKGROUND: In this study we aimed to review the outcomes of nipple-sparing mastectomy (NSM) in the setting of expanded criteria: previous breast surgery/irradiation, neoadjuvant chemotherapy (NAC), post-NSM irradiation, and to assess conversion to acceptable criteria after NAC. PATIENTS AND METHODS: In this single-institution institutional review board-approved retrospective review, we identified patients who underwent NSM after previous breast intervention or NAC from January 2010 to February 2017. Clinicopathologic features, previous breast surgeries, response rate, complications, and recurrences were recorded. RESULTS: Sixty-three patients underwent 106 NSMs. Among 63 patients, 39 (61.9%) received NAC, 30 (47.6%) previous lumpectomy, 4 (6.3%) with cosmetic implants, 4 (6.3%) with mastopexy, 5 (7.9%) with previous radiation therapy, and 21 (33%) underwent post-NSM radiation therapy. Transient epidermolysis occurred in 24 patients (38.1%), with 16 patients (66.6%) having complete flap recovery and nipple loss in 8 patients (12.6%). All 10 patients with central disease on pre-NAC imaging converted to acceptable criteria, with 9 having successful NSM. At mean 67.2-month follow-up, 56 patients (88.9%) were disease-free, 5 (7.9%) experienced a systemic recurrence, and 2 (3.2%) a local recurrence. CONCLUSION: NSM is oncologically acceptable in this patient cohort. Patients with large central tumors who undergo NAC should be reconsidered after completion of chemotherapy because many might convert to successful nipple-areolar preservation.

Transsexual Mastectomy: Selection of Appropriate Technique According to Breast Characteristics.

BACKGROUND: Subcutaneous mastectomy for female- to-male transsexuals is usually the first surgical pro- cedure in sexual reassignment. The main objective of subcutaneous mastectomy is to create an aesthetically pleasing male chest contour by removing all glandular tissue while minimizing chest wall scars. AIMS: In this paper, we present our experience with subcutaneous mastectomy performed in female-to- male transsexual patients. The authors recommend their point of view to aid in selecting the most suitable subcutaneous mastectomy technique depending on breast characteristics. STUDY DESIGN: Retrospective cross-sectional study. METHODS: Between March 2011 and December 2014, 52 patients underwent bilateral subcutaneous mastec- tomies (total of 104 mastectomies), performed using the following four techniques: Webster semicircular, concentric circular, vertical, and apron flap. The tech- nique decision depended on the breast size, degree of skin excess, skin elasticity, chest width, nipple areolar complex size and position. RESULTS: Seventeen patients (32.7%) were operated with Webster semicircular, 7 patients (13.5%) with con- centric periareolar, 12 patients with vertical (23%); and 16 patients (30.8%) with the apron flap technique. The overall postoperative complication rate was 13.4%. All patients were satisfied with the aesthetic results of their subcutaneous mastectomies within the follow-up period. CONCLUSION: To obtain higher patient satisfaction with aesthetic results and lower postoperative complication rates, breast characteristics are evaluated in a detailed fashion, while choosing the ideal technique of Female-to-Male (FtM) subcutaneous mastectomy. The presented surgical new algorithm facilitates the selection of the most reliable surgical technique.

Skin-reducing subcutaneous mastectomy using a dermal barrier flap and immediate breast reconstruction with an implant: a new surgical design for reconstruction of early-stage breast cancer.

BACKGROUND: The development of skin-sparing mastectomy techniques for early-stage breast cancer has opened a new era in reconstructive breast surgery. Because of improved early diagnoses, the demand for skin-sparing techniques continues to increase more than ever. METHODS: Between March 2006 and April 2008, skin-reducing subcutaneous mastectomy (SRSM) using the dermal barrier flap technique and simultaneous breast reconstruction with silicone implants was performed for 15 patients (a total of 26 breasts) who had either a diagnosis of early-stage breast cancer or indications for prophylactic mastectomy. Of the 15 patients, 11 underwent bilateral reconstruction. The remaining four patients underwent unilateral reconstruction using SRSM with the dermal barrier flap technique. RESULTS: The average age of the patients who underwent SRSM with the dermal barrier flap was 45.7 years. All the patients were discharged from the hospital on postoperative day 1. The mean follow-up period was 12 months, and the recovery time was 35 days. Excellent aesthetic results and uneventful healing were obtained for 23 breasts. Partial nipple-areola necrosis occurred in two breasts. Total skin necrosis in the bilateral nipple-areola and central breast region occurred for one patient who underwent bilateral SRSM. Prosthesis exposure was not observed for any of these patients. CONCLUSIONS: The authors present their early results with SRSM using the dermal barrier flap and silicone implants for early-stage breast cancer. The dermal barrier flap became a reliable procedure by providing a decreased breast envelope, eliminating the risk of implant exposure, and forming a double layer of dermal tissue at the incision line.