Re-excision Surgery Research Articles

Does Nipple-Ward Positive Margin Contribute to a Higher Rate of Re-Excision Procedures After a Lumpectomy with Pathology-Confirmed Positive Margins? A Retrospective Study.

Positive margins on lumpectomy specimens are associated with a twofold increased risk of local breast tumor recurrence. Prior literature has demonstrated various techniques and modalities for assessing margin status to reduce re-excision rates. However, there is paucity of literature analyzing which margin contributes to the highest re-excision rates. Therefore, the primary aim of the study was to investigate whether the nipple-ward margins resulted in a higher rate of re-excision in our patient population. A retrospective chart review was performed on patients who had re-excision surgery. Nipple-ward margin was identified by correlating radiological and pathological reports. A cut-off of more than 25% was used to demonstrate correlation between nipple-ward margin and re-excision rate. A total of 98 patients' data were analyzed, with 41 (41.8%), 14 (14.3%), 5 (5.1%), and 38 (38.8%) diagnosed with DCIS, IDC, ILC, and mixed pathology on their margins, respectively. Overall, 48% (n=47) of the positive margins were nipple-ward, with 44.7% (n=21) reporting DCIS. Upon stratification, 45 (45.9%) cases were single-margin positive, with 26 (57.8%) being nipple-ward. Furthermore, the remaining 53 (54.1%) patients had multiple positive margins, with 21 (39.6.7%) nipple-ward cases. Positive nipple-ward margins significantly contribute to a higher re-excision rate p < 0.001; 48% of re-excision surgeries had positive nipple-ward margins, and 57.8% of positive single-margin cases were nipple-ward. Taking an additional shave during initial lumpectomy decreases re-excision rates. However, planning a lumpectomy procedure with a more elliptical rather than a spherical resection with additional cavity shave (ie, larger volume) in the nipple-ward direction and minimizing the remaining cavity shaves so the total volume resected remains unchanged. Nevertheless, future studies with larger sample sizes are required to bolster our findings.

In vivo optical coherence tomography attenuation imaging of the breast surgical cavity using a handheld probe

Approximately 20–30% of breast-conserving surgery (BCS) patients require follow-up re-excision surgery due to inadequate cancer resection. To aid cancer detection and resection, we present a handheld optical coherence tomography (OCT) probe and attenuation imaging method to enable in vivo imaging of the surgical cavity during BCS. The attenuation imaging method incorporates three-dimensional correction of system factors in the probe, namely, confocal function and sensitivity roll-off function, demonstrating accurate and repeatable attenuation imaging of phantoms, validated using the Mie scattering model. To assess the imaging performance of the probe prior to in vivo imaging, ex vivo attenuation imaging of breast specimens from eight mastectomy patients was performed and the results compared to those acquired using a benchtop imaging system, showing consistent tissue contrast in attenuation images. In vivo imaging of breast tissue in the surgical cavity of seven patients was subsequently performed during BCS. The results demonstrate the potential of attenuation imaging to delineate cancer in vivo in the surgical cavity. Attenuation imaging provides an additional tissue contrast mechanism to complement OCT imaging, potentially contributing to more complete identification and resection of cancer during BCS.

620 Re-Operation Following Initial Breast Conservation Surgery for DCIS and Invasive Breast Cancer at ELHT Breast Unit, in 2021

Abstract Aim Breast conserving surgery (BCS), as an alternative to mastectomy, in appropriately selected patients with early-stage breast cancer is recommended. Cancer specimens from BCS can be reported as involved or close margins; this finding might increase patients’ future risk of local and distant recurrence. Association of Breast Surgery advises re-excision of breast if disease is present at radial margins (&amp;lt;1mm). The reported (2014-2018) national re-excision rates for invasive disease and DCIS were 13% and 22% respectively. This audit reviewed our Breast Unit BCS re-excision rates in 2021. Method All breast procedures performed at ELHT in 2021 were retrospectively reviewed. Patients who underwent BCS for invasive and DCIS were included in our audit. We examined the total number of patients who required further surgery following BCS, secondary to incomplete excision margin and reviewed their subsequent pathological finding and management following their re-excision surgery. Patients who had incidentally found invasive/ DCIS disease at diagnostic excision were excluded. Results 633 breast procedures were performed in the study period: 232 were BCS for invasive disease and DCIS. Re-excision rate for invasive disease was 15.1% (31/205) and 33.3% (9/27) for DCIS. Some patients (7.5%) required more than one re-excision surgery. Among these patients, a few opted for completion mastectomy. Conclusions We reported a comparable BCS re-excision rate for invasive cancer but higher than national standard re-excision rate for DCIS. This might be explained by the overall small number of BCS for DCIS. We aimed to make changes to our practice and re-audit.

Ipsilateral tumor recurrence risk in women with ductal carcinoma in situ: application of the Van Nuys Prognostic Index and the Memorial Sloan Kettering Cancer Center nomogram.

To apply the Van Nuys Prognostic Index (VNPI) and the Memorial Sloan Kettering Cancer Center (MSKCC) ductal carcinoma in situ (DCIS) nomogram to DCIS patients with known long-term outcomes. A retrospective review was performed of consecutive patients diagnosed with DCIS from 2007 to 2014. Included patients underwent breast-conserving surgery (BCS) and were followed with imaging for at least five years. For each patient, the VNPI and MSKCC nomogram risk estimates were determined. In addition, variables used in both models were compared between women with and without recurrences using the Wilcoxon signed-rank test and the Pearson's chi-squared test. Over the eight-year period, 456 women (average age 57 years, range 30-87) underwent BCS for DCIS. Thirty-one (6.8%) experienced an ipsilateral recurrence. The average VNPI scores were 7 (range 5-9) and 7 (range 4-10) for women with and without a recurrence (p = 0.14), respectively, with 4-6, 7-9, and 10-12 being the low, moderate, and high-risk groups, respectively. Per the MSKCC nomogram, the average five-year recurrence risks were 5% (range 1-12%) and 4% (range 1-38%) for women with and without a recurrence (p = 0.09), respectively. The recurrence risk-related variables were younger patient age, need for one or more re-excision surgeries, and use of endocrine therapy for 0 to less than five years after surgery. Ipsilateral tumor recurrence risk estimates based on the VNPI and MSKCC nomogram are similar between women with DCIS who did and did not have a recurrence, suggesting that more robust prognostic models are needed.

Wide-field optical coherence tomography for microstructural analysis of key tissue types: a proof-of-concept evaluation.

Introduction: The presence of positive margins following tumor resection is a frequent cause of re-excision surgery. Nondestructive, real-time intraoperative histopathological imaging methods may improve margin status assessment at the time of surgery; optical coherence tomography (OCT) has been identified as a potential solution but has not been tested with the most common tissue types in surgical oncology using a single, standardized platform. Methods: This was a proof-of-concept evaluation of a novel device that employs wide-field OCT (WF-OCT; OTIS 2.0 System) to image tissue specimens. Various cadaveric tissues were obtained from a single autopsy and were imaged with WF-OCT then processed for permanent histology. The quality and resolution of the WF-OCT images were evaluated and compared to histology and with images in previous literature. Results: A total of 30 specimens were collected and tissue-specific microarchitecture consistent with previous literature were identified on both WF-OCT images and histology slides for all specimens, and corresponding sections were correlated. Application of vacuum pressure during scanning did not affect specimen integrity. On average, specimens were scanned at a speed of 10.3s/cm2 with approximately three features observed per tissue type. Conclusion: The WF-OCT images captured in this study displayed the key features of the most common human tissue types encountered in surgical oncology with utility comparable to histology, confirming the utility of an FDA-cleared imaging platform. With further study, WF-OCT may have the potential to bridge the gap between the immediate information needs of the operating room and the longer timeline inherent to histology workflow.

The Impact of Breast-Conserving Surgery Re-excision on Patient-Reported Outcomes Using the BREAST-Q.

Approximately 14% of women undergoing breast-conserving surgery (BCS) require re-excision to achieve negative margins following the Society of Surgical Oncology (SSO) and American Society for Radiation Oncology (ASTRO) margin guidelines, which may influence patient-reported outcomes (PROs). Few studies have assessed the impact of re-excision on PROs following BCS. Women with stage 0-III breast cancer undergoing BCS who completed a BREAST-Q PRO measure from 2010 to 2016 were identified from a prospective database. Baseline characteristics were compared between women who underwent one BCS and those who underwent ≥ 1 re-excision surgery for positive margins (R-BCS). Linear mixed models were used to analyze associations between number of excisions and BREAST-Q scores over time. Of 2543 eligible women, 1979 (78%) had one BCS and 564 (22%) had R-BCS. Younger age, lower BMI, surgery pre-SSO Invasive Guidelines issuance, ductal carcinoma in situ (DCIS), multifocal disease, radiation therapy receipt, and endocrine therapy omission were more common in the R-BCS group. Breast satisfaction and sexual well-being were lower in the R-BCS group 2years postoperatively. There were no differences in psychosocial well-being between groups over 5 years. On multivariable analysis, re-excision was associated with lower breast satisfaction and sexual well-being (p= 0.007 and p= 0.049, respectively), but there was no difference in psychosocial well-being (p= 0.250). Women with R-BCS had lower breast satisfaction and sexual well-being 2 years postoperatively, but this difference did not remain long term. Psychosocial well-being in women who underwent one BCS were largely comparable over time to the R-BCS group. These findings may help in counseling women who are concerned about satisfaction and quality-of-life outcomes with BCS if re-excision is necessary.

A Comparison of Spectroscopy and Imaging Techniques Utilizing Spectrally Resolved Diffusely Reflected Light for Intraoperative Margin Assessment in Breast-Conserving Surgery: A Systematic Review and Meta-Analysis.

Up to 19% of patients require re-excision surgery due to positive margins in breast-conserving surgery (BCS). Intraoperative margin assessment tools (IMAs) that incorporate tissue optical measurements could help reduce re-excision rates. This review focuses on methods that use and assess spectrally resolved diffusely reflected light for breast cancer detection in the intraoperative setting. Following PROSPERO registration (CRD42022356216), an electronic search was performed. The modalities searched for were diffuse reflectance spectroscopy (DRS), multispectral imaging (MSI), hyperspectral imaging (HSI), and spatial frequency domain imaging (SFDI). The inclusion criteria encompassed studies of human in vivo or ex vivo breast tissues, which presented data on accuracy. The exclusion criteria were contrast use, frozen samples, and other imaging adjuncts. 19 studies were selected following PRISMA guidelines. Studies were divided into point-based (spectroscopy) or whole field-of-view (imaging) techniques. A fixed-or random-effects model analysis generated pooled sensitivity/specificity for the different modalities, following heterogeneity calculations using the Q statistic. Overall, imaging-based techniques had better pooled sensitivity/specificity (0.90 (CI 0.76-1.03)/0.92 (CI 0.78-1.06)) compared with probe-based techniques (0.84 (CI 0.78-0.89)/0.85 (CI 0.79-0.91)). The use of spectrally resolved diffusely reflected light is a rapid, non-contact technique that confers accuracy in discriminating between normal and malignant breast tissue, and it constitutes a potential IMA tool.

Abstract P1-09-10: Factors associate with borderline or invaded margins in breast cancer surgery at the Val d’Aurelle Montpellier CRLC

Abstract Factors associate with borderline or invaded margins in breast cancer surgery at the Val d’Aurelle Montpellier CRLC Véronique Mboua Batoum*, Esther Dina Bell, Christianne Nsahlai, Junie Annick Metogo Ntsama, Esther Juliette Meka, Marian Gutowski, Simon Thezenas, William Jacot *Corresponding autor : vbatoum@gmail.com Introduction: The inadequate status of the resection margins after breast cancer surgery is an important predictor of local tumor recurrence. The objective of our study was to determine the factors associated with positive or invaded resection margins. Methodology: Our retrospective study included a cohort of 652 patients with early invasive breast cancer who underwent breast cancer conserving surgery at the Val d’Aurelle Regional Cancer Center. We defined positive margins as those with a distance of less than or equal to 2 mm from the tumour. The data were analysed using STATA® 10.0 software. Results: In our study, The median distance from the tumour to the surgical resection site was 5mm [0.0 - 35.0mm]. Resection margins were positive in 208 patients (31.9%). The rate of positive resection margins was significantly higher in non-menopausal patientss (P =0,0050), in those with tumours less than 2 cm in size (P = 0,0004), with ductal carcinoma in situ (DCIS) component and without lymph node involvement (P =0,0082). Re-excision surgery was performed in 229 patients (35.1%). Conclusion: Consideration of each of these factors associated with positive resection margins shoud help the surgeons to perform a wider excision, in other to obtain clear resection margin during the initial breast cancer surgery. Key words: breast cancer, conservative surgery, resection margins, risk factors for positive margins Citation Format: veronique M. Mboua Batoum, esther D. Dina Bell. Factors associate with borderline or invaded margins in breast cancer surgery at the Val d’Aurelle Montpellier CRLC [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P1-09-10.

Single-institution outcomes after excision of benign phyllodes tumors: low recurrence risk even with positive margins.

Benign phyllodes tumors (BPT) are rare breast neoplasms with clinical behavior that poses low recurrence risk. Guidelines regarding appropriate margins recommend surgical excision to negative margins, sometimesrequiring re-excisionsurgery. Contemporary experience suggests that re-excision in the face of positive margins may not be needed. This is a retrospective review of a single-institution experience with BPT from 2010 to 2019 with 102 patients. Demographics, outcomes and follow-up were analyzed. The median age was 37years. 95% had a pre-operative biopsy and only 6% were confirmed BPT before surgery.56% had positive margins and were more likely to be younger and have a pre-operative diagnosis of fibroadenoma. The median follow-up was 33months. Between the positive and negative margin groups, recurrence rates were not significantly different (p = 0.87). Positive margins on excision of BPT poses a low recurrence risk and re-excision surgery is not necessary.

Intralesional margin after excision of a high-grade osteosarcoma: Is it a catastrophe?

Background and ObjectivesTreatment of high‐grade osteosarcoma (OS) relies on a combination of systemic chemotherapy and radical surgical excision of the tumor. Little is known on what happens in case of an irrefutably inadequate (intralesional) margin. We aimed to describe the outcome of patients with high‐grade OSs of the trunk and the extremities where planned wide resection resulted in an intralesional margin.MethodsA retrospective study from the Scandinavian Sarcoma Group registry and the Royal Orthopaedic Hospital databases including data from 53 patients surgically treated between the years 1990 and 2017.ResultsLocal recurrence was observed in 13/53 patients. All patients with local recurrence where the neoadjuvant chemotherapy response could be retrieved (n = 9) were shown to be poor responders. None of the patients with good response to chemotherapy relapsed. Postoperative radiotherapy was not associated with improved local control of the disease. Re‐excision surgery was performed in only seven patients, and two of them had tumor relapse.ConclusionsGood response to chemotherapy salvages the outcome of surgical excision with a poor margin in patients with high‐grade OSs and a watchful waiting strategy may be justified in these cases. Poor responders have a higher recurrence risk and their approach should be individualized.

Abstract P4-09-02: The impact of breast conserving surgery re-excision on patient-reported outcomes using the BREAST-Q

Abstract Introduction: Although SSO/ASTRO consensus margin guidelines have led to decrease rate of re-excision, some women require additional surgery. Re-excision surgery may cause psychosocial stress and impact cosmetic outcomes and breast satisfaction. The purpose of this study was to assess patient-reported outcomes using the BREAST-Q breast satisfaction, psychosocial wellbeing, and sexual wellbeing subscales for women with breast cancer following index breast-conserving surgery (BCS). Methods: Women with stage 0 to 3 breast cancer undergoing BCS who completed a BREAST-Q from 2010 to 2016 were identified by retrospective review of a prospective database. The BREAST-Q breast conserving therapy module was used to assess outcomes between women with 1 BCS and those with ≥1 re-excision surgery (R-BCS). Baseline characteristics were compared, and linear mixed models were used to analyze associations with BREAST-Q scores over time. Results: Our study group was initially composed of 2570 women that was narrowed to 2549 women after excluding 21 who ultimately underwent mastectomy; 1982 (78%) had 1 BCS and 567 (22%) had ≥1 R-BCS. The median age of the cohort was 57 years (range 26-97). Women with 1 BCS were more likely to be older (p&amp;lt;0.001), have a higher BMI (p=0.01), present with invasive carcinoma (p=0.03), have unifocal disease (p&amp;lt;0.001), undergo surgery post-release of SSO Invasive Guidelines (p&amp;lt;0.001), receive endocrine therapy (p=0.006), and less likely to receive radiation therapy (p=0.02) compared to those with ≥1 R-BCS. At 2-years post-operative, women with ≥1 R-BCS compared to 1 BCS were noted to have lower average breast satisfaction and sexual well-being scores (76.0 vs. 71.8 [p=0.03] and 70.2 vs. 64.0 [p=0.01], respectively). No difference in psychosocial well-being scores existed for up to 5 years of post-operative follow-up. Multivariable linear regression confirmed that undergoing ≥1. R-BCS is a risk factor for decreased breast satisfaction and sexual well-being at 2 years postoperative. On multivariable analysis, re-excision was found to be associated with lower breast satisfaction and sexual well-being scores. (p=0.01 and p=0.02, respectively), while it was not associated with a change in psychosocial wellbeing score (p=0.07). Factors such as Race, BMI, and marital status were not associated with any difference across all subscales (all p&amp;gt;0.1). Chemotherapy and radiotherapy were associated with lower scores across all subscales (Table). Younger age was associated with lower psychosocial and sexual well-being scores (both p&amp;lt;0.001), and endocrine therapy was associated with a lower sexual well-being score (p=0.01). Conclusions: Psychosocial well-being in women with 1 BCS for breast cancer were largely comparable over time to those who underwent ≥1 R-BCS. At 2 years post-operative, women with 1-BCS had lower breast satisfaction and sexual well-being, but this difference did not remain at later time periods. These findings may help in counseling women who are concerned of satisfaction and quality of life outcomes with BCS if breast re-excision was necessary. Multivariable analysis of BREAST-Q Subscale scoresEstimateStandard Errorp valueBreast SatisfactionAge at surgery-0.0690.0480.147BMI-0.1380.0810.088Chemotherapy-2.5421.0260.015Adjuvant radiation-3.4371.5830.031Hormonal therapy-0.6511.1700.119≥1 R-BCS vs. 1 BCS-2.5420.8840.008Psychosocial well-beingAge at surgery0.1980.043&amp;lt;0.001BMI-0.079-0.0790.287 Chemotherapy-3.2090.9330.001Adjuvant radiation-4.5091.4600.004Hormonal therapy0.2081.0740.528≥1 R-BCS vs. 1 BCS-1.4450.7930.059Sexual well-beingAge at surgery0.2700.072&amp;lt;0.001BMI-0.1140.1180.337Chemotherapy-4.7131.428&amp;lt;0.001Adjuvant radiation-7.6292.493&amp;lt;0.001Hormonal therapy-1.1801.7080.008≥1 R-BCS vs. 1 BCS-2.9661.2190.015 Citation Format: Regina Matar, Meghan Flanagan, Sarah Fuzesi, Kathyrn Haglich, Shen Yin, Varadan Sevilimedu, Jonas Nelson, Mary L. Gemignani. The impact of breast conserving surgery re-excision on patient-reported outcomes using the BREAST-Q [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P4-09-02.

Abstract P3-18-11: Meeting the challenge of successful one-stage lumpectomy for DCIS

Abstract Introduction: Positive lumpectomy margins are associated with an increased risk for ipsilateral tumor recurrence, and necessitate additional procedures to achieve acceptable margins. Re-excision rates are higher in patients with ductal carcinoma in situ (DCIS) versus those with invasive carcinoma. The purpose of this study was to investigate the clinicopathologic characteristics, surgical techniques, and other outcomes associated with re-excision over time following primary breast conserving surgery for DCIS. Methods: Our institutional Breast Cancer Database was queried for patients treated with lumpectomy as the primary procedure for pure DCIS from 2010-2021. Cases of microinvasive disease were excluded. The primary endpoint was the rate of re-excision following lumpectomy. Variables of interest included patient demographics and clinicopathologic characteristics. As a secondary analysis, adjusted odds ratios for the association of MarginProbe® with re-excisions were calculated using a multivariable logistic regression model controlling for age, tumor size, breast density and DCIS subtype. Individual comparisons of continuous variables were based on t-tests, group proportions compared with one-way ANOVA, and categorical variables compared using Chi Square tests. Results: Out of a total of 695 patients in our cohort, 221 (32%) had re-excisions. There was a statistically significant 2% decline per year in the number of re-excisions (p=0.005). Patients who underwent re-excision had larger size of DCIS (2.37 cm vs 1.37 cm, p&amp;lt;0.001). Papillary-type DCIS was associated with an increased rate of re-excision surgery (Table 1). Prior to the introduction of the MarginProbe® for intraoperative margin assessment in 2014, approximately 42% of patients with DCIS underwent re-excisions. This decreased to 24.9% in the post-2013 time frame (p=0.02). In an unadjusted estimate for the odds ratio for association, patients who underwent lumpectomy with MarginProbe® were 81% less likely to require re-excision (OR = 0.19, 95% CI = 0.12, 0.31, p&amp;lt;0.0001). In a logistic regression model controlling for potential confounders with re-excision as the dependent variable and MarginProbe® as the primary explanatory variable, patients for whom the MarginProbe® was used were 66% less likely to require re-excision when controlling for age, tumor size, menopausal status, breast density, and pathology (OR = 0.34, 95% CI 0.16, 0.69). Of patients who required re-excision, 20% went on to mastectomies as their second procedure. After each unsuccessful re-excision, a larger proportion of patients converted to mastectomy. In total, 26% of patients who had unsuccessful primary surgery went on to mastectomies. Of patients who proceeded to mastectomy as their second procedures, 13% were found to carry BRCA1 or 2 mutations. Conclusions: In our study of patients diagnosed with pure DCIS and treated with primary breast conserving surgery, larger size of DCIS and papillary subtype were associated with an increased rate of re-excision procedures. A proportion of patients with unsuccessful primary lumpectomies required multiple procedures to complete their surgical treatment and 26% went on to mastectomy. Patients whose primary procedures included intraoperative margin assessment with the MarginProbe® were significantly less likely to require re-excision. Intraoperative margin assessment is an important tool that can support breast conserving surgery in the challenging population of patients with DCIS. Table 1.Clinicopathologic CharacteristicsVariableNo Re-excision (n=313)Re-Excision (n=100)P-ValueAge; mean (SD)61.48 (12.01)58.04 (13.39)0.016Age of Menopause; mean (SD)50.22 (5.18)48.13 (5.45)0.004Size of DCIS; mean (SD)1.37 (1.25)2.37 (2.00)&amp;lt;0.001Breast Density (%)0.149N/A6 (1.9)2 (2.0)Entirely Fatty10 (3.2)3 (3.0)Extremely Dense19 (6.1)13 (13.0)Heterogeneously Dense165 (52.7)42 (42.0)Scattered Fibroglandular113 (36.1)40 (4.0)DCIS SubtypePapillary93 (29.7)48 (48.0)0.001Cribiform206 (65.8)69 (69.0)0.641Solid190 (60.7)60 (60.0)0.994Comedo54 (17.3)25 (25.0)0.117Surgical Margins (%)&amp;lt;0.001Close (&amp;gt;0 and &amp;lt;1mm)3 (1.0)60 (60.0)Negative (≥1 mm)310 (99.0)13 (13.0)Positive (≤0 mm)0 (0.0)27 (27.0) Citation Format: Joshua A Feinberg, Charles DiMaggio, Nakisa Pourkey, Jennifer Chun Kim, Jenny Goodgal, Amber Guth, Deborah Axelrod, Freya Schnabel. Meeting the challenge of successful one-stage lumpectomy for DCIS [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P3-18-11.

Oncoplastic breast-conserving surgery for women with primary breast cancer.

Oncoplastic breast-conserving surgery for women with primary breast cancer.

Comparison of Surgical and Oncological Outcomes between Chest Wall Perforator Flaps and Therapeutic Mammoplasty.

Background:Chest wall perforator flaps (CPF) and therapeutic mammoplasty (TM) are often done in patients with anticipated poor cosmetic outcome with level 1 breast conservation surgery. The aim of this study was to assess the complications and oncological outcomes between CPF and TM.Methods:Prospectively collected data of breast conservation surgery between September 2016 and January 2021 by a single surgeon were reviewed. Specific outcomes included complications needing intervention, re-excision and mastectomy rate, locoregional recurrence, and distant metastasis. Patients were followed up at 3 months and then every 12 months. Statistical analysis included chi-squared test and independent t test, and a P value of less than 0.05 was considered significant.Results:There was no statistically significant difference between CPF and TM with regard to patient characteristics except for BMI and bra cup size, which was significantly higher in the TM group. One patient who had TM returned to the operating room for a hematoma evacuation, and one patient who had CPF had fat grafting, for unsatisfactory cosmetic outcome. Five of the 30 patients having CPF had further re-excision surgery for inadequate margins, but none needed mastectomy, and four of the 43 patients having TM had further surgery (one had re-excision of margins and three had mastectomy) and this was not statistically significant (P = 0.346). There was no locoregional recurrence in CPF and TM groups after a median follow-up of 22 months and 25 months, respectively.Conclusion:There is no significant difference in early complications and oncological outcomes between CPF and TM.

Occurrence of residual disease in specimens of re‐excision surgery in patients with positive margins of primary quadrantectomy

Performing a re-intervention following a positive margin after primary lumpectomy in patients with breast cancer entails several disadvantages such as additional costs and postponing the follow-up treatments. In the present study, we sought to measure the incidence rate of residual disease in specimens taken from breast cancer patients who had positive margins after quadrantectomy and also compare the clinical and pathological factors between patients with and without a residual disease after the secondary surgery. All of the medical records of patients undergoing quadrantectomy from December 1994 to December 2019 were collected from Shiraz Breast Cancer Registry (SBCR). Patients were divided into two subgroups of patients with and without residual disease from the secondary surgery and also with and without positive margin from the first operation. Two groups were compared in terms of all clinicopathological factors. The records of 4843 patients undergoing quadrantectomy were reviewed, of which 132 (2.3%) had involved margins. Of these, 112 patients underwent a secondary surgery and 28 had residual disease (25%). No clinicopathological factor was correlated with presence of residual cancer. Also, bigger tumor size (p<0.001) and the presence of in situ component (p<0.001) were associated with positive margin and hence the need for a re-excision surgery. These results revealed that the significant rate of residual disease in the specimens of the secondary surgery indicates that a re-operation (either re-excision or simple mastectomy) cannot be omitted after obtaining a positive margin from the primary quadrantectomy.

Phyllodes tumors of the breast: a retrospective analysis of 57 cases.

Current guidelines for the treatment of phyllodes tumors recommend wide local excision for all histopathological subtypes. However, it is unknown which subtypes have tendency to recur after marginal or incomplete excision. This may lead to over-treatment by re-excision surgery for tumors with little or no potential to recur. All patients with benign, borderline or malignant phyllode tumors presenting at our institution between 2000 and 2016 were retrospectively analyzed. A total of 57 patients could be included, of which 39 tumors were benign (60%), three were borderline (5%), and seven were malignant phyllodes tumors (12%). There were also eight phyllodes-like fibroadenomas (14%). Fifty-two patients (91%) underwent local excision as primary treatment, resulting in tumor-positive or close-resection margins in 32 patients (61.5%) of whom five patients (15.6%) had re-excision surgery. During a median follow-up of 5years, local recurrence occurred in four patients (7.0%) with a median time-to-recurrence of 12months. Borderline and malignant subtypes were associated with a significantly higher recurrence rate compared to other subtypes (p = 0.039). Although an adequate tumor-negative resection margin should be obtained for borderline and malignant phyllodes tumors, this study confirms that wide local excision is the appropriate primary treatment for all histopathological subtypes. However, if tumor-negative margins were not obtained at first excision, a wait-and-see approach is justified for benign phyllodes tumors.

Intraoperative Inking in Breast Surgery: Time for an International Standardized System with a Memorable Proposed Colour Code.

Background: Specimen marking protocols in oncologic breast surgery vary widely between units, and also between surgeons and pathologists within the same Trust. This raises concerns regarding the accuracy in the assessment of the surgical margins, with risk of re-excision surgery and effect on the quality of patient’s care and safety. NHS Breast Screening Programme (NHSBSP) guidelines recommend using a protocol to orientate excised specimens, allowing accurate re-excision of positive margins. The national survey of breast cancer specimen orientation revealed the desire by pathologists for a defined standardized marking system. Intraoperative inking has been proven to be cost-effective and reduces re-excision rates in breast conserving surgery. Specimen inking should be performed by the surgeon who knows the original shape and orientation, and therefore can define the extent of the surface area of each of the margins. Tabled 1 Margin Superior Anterior Inferior MeDial Posterior Lateral Colour Blue Yellow Green ReD Black Orange Memorable hint Sky Sun Grass D Back Sunset Open table in a new tab

Factors related to re-excision procedures following primary breast-conserving surgery for women with breast cancer in the U.S. Military Health System.

Re-excision surgery is undertaken to obtain clear margins after breast-conserving surgery (BCS) for localized breast cancer. This study examines patient and tumor characteristics related to re-excision surgery in the universal-access Military Health System (MHS). Retrospective analysis of patients with pathologically confirmed stage I-III breast cancer between 1998 and 2014 in the Department of Defense Central Cancer Registry and MHS Data Repository-linked databases who received primary BCS. Multivariable stepwise logistic regression methods identified characteristics associated with re-excision surgery (lumpectomy and mastectomy) and conversion to mastectomy, given as adjusted odds ratios (AOR) and 95% confidence intervals (CIs). Of 7637 women receiving BCS, 26.3% had a re-excision and 9.9% converted to mastectomy. Tumor location, larger tumor size (≥4 cm), and regional lymph node involvement were associated with a greater likelihood of re-excision and mastectomy conversion. Pathology before BCS (AOR, 0.39; 95% CI, 0.35, 0.44 for re-excision) and neoadjuvant treatment (AOR, 0.50; 95% CI, 0.36, 0.69 for re-excision) were associated with a decreased likelihood of these outcomes. Additionally, age, tumor histology, and military-specific variables were associated with mastectomy conversion. Comprehensive preoperative workup, including tumor pathology, may better inform surgical decision-making and reduce re-excision rates.

Re-excision After Breast Conservation Surgery – Our Breast Unit experience

Background: The benefit of re-excision surgery for involved margin after BCS among the patient receiving adjuvant radiotherapy is unclear. Omission of re-excision surgery for selected patients with focally involved margin after BCS did not alter DFS and OS. Knowing the biology of cancer may assist to select patients benefiting with re-excision surgery

Surgical management of ductal carcinoma in situ of the breast: A large retrospective study from a single institution.

Management of breast ductal carcinoma in situ (DCIS) has various approaches with distinct institutional specific practice. Here, we review DCIS management in a single institution with emphasize on re-operation rates and outcome. Breast ductal carcinoma in situ cases diagnosed at the Nottingham Breast Institute between 1987 and 2017 were identified (n=1249). Clinicopathological data were collected. Cases were histologically reviewed, and different factors associated with primary operation selection, re-excision, presence of residual tumor in the re-excision specimens, use of radiotherapy and ipsilateral recurrences were analyzed. 34% of DCIS patients were initially treated by mastectomy and were more frequently symptomatic, of high nuclear tumor grade, size >40mm, and associated with comedo necrosis and Paget's disease of the nipple. Further surgery was due to involved or narrow surgical margins. Residual tumor tissue was detected in 53% of the re-excision specimens. Re-excision rates of patients treated with breast-conserving surgery (BCS) were reduced from approximately 70% to 23%, and the final mastectomy rates decreased from 60% to 20%. Changes in surgical practice with acceptance of smaller excision margins and more frequent use of local radiotherapy have led to a significant decrease not only in the re-excision rate but also in the final mastectomy rate together with non-significant reduction in 5- and 10-year local recurrence rates. Although BCS is increasingly the preferred primary surgical option for DCIS management, a proportion of low-risk DCIS patients continue to undergo re-excision surgery or completion mastectomy. Despite acceptance of smaller margins, recurrence rate is decreasing.