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Vo K, Ladbury C, Yoon S, Bazan J, Glaser S, Amini A. Omission of adjuvant radiotherapy in low-risk elderly males with breast cancer. Breast Cancer 2024; 31:485-495. [PMID: 38507145 PMCID: PMC11045584 DOI: 10.1007/s12282-024-01560-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/26/2024] [Indexed: 03/22/2024]
Abstract
PURPOSE Randomized clinical trials demonstrate that lumpectomy + hormone therapy (HT) without radiation therapy (RT) yields equivalent survival and acceptable local-regional outcomes in elderly women with early-stage, node-negative, hormone-receptor positive (HR +) breast cancer. Whether these data apply to men with the same inclusion criteria remains unknown. METHODS The National Cancer Database was queried for male patients ≥ 65 years with pathologic T1-2N0 (≤ 3 cm) HR + breast cancer treated with breast-conserving surgery with negative margins from 2004 to 2019. Adjuvant treatment was classified as HT alone, RT alone, or HT + RT. Male patients were matched with female patients for OS comparison. Survival analysis was performed using Cox regression and Kaplan - Meier method. Inverse probability of treatment weighting (IPTW) was applied to adjust for confounding. RESULTS A total of 523 patients met the inclusion criteria, with 24.4% receiving HT, 16.3% receiving RT, and 59.2% receiving HT + RT. The median follow-up was 6.9 years (IQR: 5.0-9.4 years). IPTW-adjusted 5-yr OS rates in the HT, RT, and HT + RT cohorts were 84.0% (95% CI 77.1-91.5%), 81.1% (95% CI 71.1-92.5%), and 93.0% (95% CI 90.0-96.2%), respectively. On IPTW-adjusted MVA, relative to HT, receipt of HT + RT was associated with improvements in OS (HR: 0.641; p = 0.042). RT alone was not associated with improved OS (HR: 1.264; p = 0.420). CONCLUSION Among men ≥ 65 years old with T1-2N0 HR + breast cancer, RT alone did not confer an OS benefit over HT alone. Combination of RT + HT demonstrated significant improvements in OS. De-escalation of treatment through omission of either RT or HT at this point should be done with caution.
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Affiliation(s)
- Kim Vo
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, 309 E 2 ndSt, Pomona, CA, 91766, USA
| | - Colton Ladbury
- Department of Radiation Oncology, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA, 91010, USA.
| | - Stephanie Yoon
- Department of Radiation Oncology, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Jose Bazan
- Department of Radiation Oncology, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Scott Glaser
- Department of Radiation Oncology, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Arya Amini
- Department of Radiation Oncology, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA, 91010, USA
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Ma Z, Xu M, Zhang J, Li J, Fang F. Establishment of Prognostic Nomogram for Male Breast Cancer Patients: A Surveillance, Epidemiology and End Results Database Analysis. Cancer Control 2024; 31:10732748241270628. [PMID: 39116271 PMCID: PMC11311147 DOI: 10.1177/10732748241270628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 06/06/2024] [Accepted: 06/13/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Male breast cancer (MBC) represents a rare subtype of breast cancer, with limited prognostic factor studies available. The purpose of this research was to develop a unique nomogram for predicting MBC patient overall survival (OS) and breast cancer-specific survival (BCSS). METHODS From 2010 to 2020, clinical characteristics of male breast cancer patients were obtained from the Surveillance, Epidemiology and End Results (SEER) database. Following univariate and multivariate analyses, nomograms for OS and BCSS were created. Kaplan-Meier plots were further generated to illustrate the relationship between independent risk variables and survival. The nomogram's ability to discriminate was measured by employing the area under a time-dependent receiver operating characteristic curve (AUC) and calibration curves. Additionally, when the nomogram was used to direct clinical practice, we also used decision curve analysis (DCA) to evaluate the clinical usefulness and net clinical benefits. RESULTS A total of 2143 patients were included in this research. Univariate and multivariate analysis showed that age, grade, surgery, chemotherapy status, brain metastasis status, subtype, marital status, race, and AJCC-T, AJCC-N, and AJCC-M stages were significantly correlated with OS. Lung metastasis, age, marital status, grade, surgery, and AJCC-T, AJCC-N, and AJCC-M stages were significantly correlated with BCSS. By comprising these variables, a predictive nomogram was constructed in the SEER cohort. Then, it could be validated well in the validation cohort by receiver operating characteristics (ROCs) curve and calibration plot. Furthermore, the nomogram demonstrated better decision curve analysis (DCA) results, indicating the ability to forecast survival probability with greater accuracy. CONCLUSION We created and validated a unique nomogram that can assist clinicians in identifying MBC patients at high risk and forecasting their OS/BCSS.
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Affiliation(s)
- Zhongjing Ma
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Mengyao Xu
- Department of Gastroenterology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jingjiao Zhang
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jia Li
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Fengqi Fang
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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3
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Dogan I, Aydin E, Ak N, Ozkurt S, Ibıs K, Sükrüoglu O, Erciyas SK, Küçücük S, Yazici H, Aydiner A, Saip P. Clinicopathologic characteristics and prognostic factors in patients with male breast cancer: A single tertiary center experience. J Cancer Res Ther 2023; 19:1887-1892. [PMID: 38376293 DOI: 10.4103/jcrt.jcrt_243_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 02/16/2022] [Indexed: 02/21/2024]
Abstract
BACKGROUND The goal of this study was to assess the clinicopathologic characteristics and prognostic variables in men with breast cancer (BC). METHODS Clinical features, pathological characteristics, stage at diagnosis, and therapy data were noted. Survival analysis was performed using the log-rank technique and Cox regression model. RESULTS Eighty patients were included in the study. In 31% of the individuals, BRCA (BReast CAncer genes 1 and 2) mutations were identified. The estrogen receptor (ER) positivity ratio was 93.6%, whereas the progesterone receptor (PR) positivity ratio was 74.4%. In 16.9% of the cases, HER2 overexpression was found. The median survival time was 120.9 months (70.3-171.5), and the five-year overall survival (OS) ratio was 74.9%. In univariate analysis, BRCA mutation status had no effect on OS (P = 0.50). CA15-3 levels (P = 0.03) at diagnosis and history of smoking (P = 0.03) were significantly linked with OS. However, the multivariate analysis could not confirm these results. CONCLUSIONS We found that BRCA mutation, body mass index, a history of smoking, and alcohol consumption did not affect the OS in this research.
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Affiliation(s)
- Izzet Dogan
- Department of Medical Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Esra Aydin
- Department of Medical Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Naziye Ak
- Department of Medical Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Selnur Ozkurt
- Department of Radiation Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Kamuran Ibıs
- Department of Radiation Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Ozge Sükrüoglu
- Department of Cancer Genetics, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Seda Kılıc Erciyas
- Department of Cancer Genetics, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Seden Küçücük
- Department of Radiation Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Hulya Yazici
- Department of Cancer Genetics, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Adnan Aydiner
- Department of Medical Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
| | - Pinar Saip
- Department of Medical Oncology, Istanbul University Institute of Oncology, Istanbul, Turkey
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4
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The role of postoperative radiation therapy in stage I–III male breast cancer: A population-based study from the surveillance, epidemiology, and End Results database. Breast 2022; 65:41-48. [PMID: 35810531 PMCID: PMC9272391 DOI: 10.1016/j.breast.2022.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 11/20/2022] Open
Abstract
Background This study aimed to investigate the role of postoperative radiation therapy in a large population-based cohort of patients with stage I–III male breast cancer (MaBC). Methods Patients with stage I–III breast cancer treated with surgery were selected from the Surveillance, Epidemiology, and End Results cancer database from 2010 to 2015. Multivariate logistic regression identified the predictors of radiation therapy administration. Multivariate Cox regression model was used to evaluate the predictors of survival. Results We identified 1321 patients. Age, stage, positive regional nodes, surgical procedure, and HER2 status were strong predictors of radiation therapy administration. There was no difference between patients who received radiation therapy and those who did not (P = 0.46); however, after propensity score matching, it was associated with improved OS (P = 0.04). In the multivariate analysis of the unmatched cohort, the factors associated with better OS were administration of radiation therapy and chemotherapy. In the subset analysis of the unmatched cohort, postoperative radiation therapy was associated with improved OS in men undergoing breast-conserving surgery (BCS), with four or more node-positive or larger primary tumours (T3/T4). Furthermore, we found no benefit of radiation therapy, regardless of the type of axillary surgery in mastectomy (MS). In older MaBC patients with T1-2N1 who underwent MS, radiation therapy showed no significant effects, regardless of chemotherapy. Conclusion Postoperative radiation therapy could improve the survival of MaBC patients undergoing BCS, with four or more node-positive or larger primary tumours. Moreover, it should be carefully considered in patients undergoing MS and older T1-2N1 patients. Postoperative radiation therapy may improve survival of some male breast cancer patients. Patients undergoing breast-conserving surgery or with large tumours may benefit. Radiation therapy had no benefits in mastectomy regardless of axillary surgery type. Radiation therapy was not effective in older T1-2N1 patients with receiving mastectomy.
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Zheng G, Leone JP. Male Breast Cancer: An Updated Review of Epidemiology, Clinicopathology, and Treatment. JOURNAL OF ONCOLOGY 2022; 2022:1734049. [PMID: 35656339 PMCID: PMC9155932 DOI: 10.1155/2022/1734049] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/23/2022] [Accepted: 05/05/2022] [Indexed: 12/11/2022]
Abstract
Male breast cancer (MaBC) is a rare clinical entity, which makes up approximately 1% of all breast cancers. However, the incidence of MaBC has been steadily increasing over the past few decades. The risk factors for MaBC include age, black race, family history of breast cancer, genetic mutations, liver cirrhosis, and testicular abnormalities. The majority of patients with MaBC present with painless lumps, and about half of the patients have at least one lymph node involved at the time of diagnosis. The treatment of MaBC models that of female breast cancer (FeBC), but this is mainly due to lack of prospective studies for MaBC patients. The treatment modality includes surgery, adjuvant radiation, endocrine therapy, and chemotherapy. However, there are some distinct features of MaBC, both clinically and molecularly, that may warrant a different clinical approach. Ongoing multinational effort is required, to conduct clinical trials for MaBC, or the inclusion of MaBC patients in FeBC trials, to help clinicians improve care for MaBC patients.
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Affiliation(s)
- Guoliang Zheng
- Department of Medicine, St Elizabeth Medical Center, A Teaching Hospital of Boston University, 736 Cambridge Street, Boston, MA, USA
| | - Jose Pablo Leone
- Dana Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, USA
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6
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He Y, Gao X, Wu J, Li X, Ma Z. Effect of Breast conservation therapy vs mastectomy on overall survival and breast cancer-specific survival among men with stage I-II breast cancer: Analysis of SEER, 2000-2018. Clin Breast Cancer 2022; 22:410-417. [DOI: 10.1016/j.clbc.2022.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 12/26/2022]
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7
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Lin AP, Huang TW, Tam KW. Treatment of male breast cancer: meta-analysis of real-world evidence. Br J Surg 2021; 108:1034-1042. [PMID: 34476472 DOI: 10.1093/bjs/znab279] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 07/01/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND Breast cancer is rare in men and managed by extrapolating from breast cancer in women. The clinicopathological features of male breast cancer, however, differ from those of female breast cancer. Because clinical trials are rare, the synthesis of real-world data is one method of integrating sufficient evidence on the optimal treatment for this patient population. METHODS PubMed, Embase, and Cochrane Library databases were searched. Clinical studies were included if they evaluated the treatments of interest in male breast cancer; these evaluations included breast-conserving surgery (BCS) versus mastectomy, postmastectomy radiation therapy versus no radiation, the accuracy of sentinel lymph node biopsy (SLNB), and a comparison of various endocrine therapies. RESULTS Forty studies were retrieved. The pooled estimate of overall survival (OS) revealed no difference between BCS and mastectomy groups. Postmastectomy radiation to the chest wall significantly increased OS relative to no postmastectomy radiation (hazard ratio (HR) 0.67, 95 per cent confidence interval 0.54 to 0.84). The pooled estimates of identification and false-negative rates of SLNB were 97.4 and 7.4 per cent respectively. Tamoxifen treatment was associated with significantly increased OS compared with no tamoxifen intake (HR 0.62, 0.41 to 0.95). CONCLUSION Identification and false-negative rates for SLNB were comparable to those in female breast cancer. Breast-conserving surgery can be effective and safe; postmastectomy radiation to the chest wall and 5-year tamoxifen treatment improves survival.
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Affiliation(s)
- A P Lin
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - T-W Huang
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan.,Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan
| | - K-W Tam
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.,Division of General Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
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8
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Riis M. Management of patients with BRCA mutation from the point of view of a breast surgeon. Ann Med Surg (Lond) 2021; 65:102311. [PMID: 33996049 PMCID: PMC8091883 DOI: 10.1016/j.amsu.2021.102311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 12/24/2022] Open
Abstract
Germ-line mutation in BRCA (BReast CAncer gene) 1 or BRCA2 are found in 3–4% of all women with breast cancer. These patients have a significant increased risk of breast and ovarian cancer. They are often younger when diagnosed with the mutation, and the possible breast cancer they get is often aggressive with inferior outcome. There are risk reducing strategies, and the most powerful strategy is risk reducing surgery, both risk reducing bilateral mastectomy (RRM) and risk reducing bilateral salpino-oophorectomy (PBSO). This review is meant to address breast surgery in patients with germline BRCA mutation. The guidelines and techniques applied is under continuous change and it is important for the clinicians to be well informed to provide the patient with the information needed for them to make an informed decision on what risk strategy to choose. Patients with germ-line mutation in BRCA1 or BRCA2 have a significant increased risk of breast and ovarian cancer. There are different risk reducing strategies and the most powerful strategy is risk-reducing surgery, both risk reducing bilateral mastectomy and risk reducing bilateral salpingo-oophorectomy. Guidelines and techniques for the risk reducing surgery of the breast are under continuous change and improvement. Breast conserving therapy is not associated with worse survival and is a good option for a BRCA mutation carrier diagnosed with breast cancer. Risk-reducing mastectomy can be performed in a later setting. The management of BRCA mutation carriers, both affected and unaffected, should be performed in a multidisciplinary team. Physicians need to be systematically educated and updated on the most recent literature.
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9
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Management and outcomes of men diagnosed with primary breast cancer. Breast Cancer Res Treat 2021; 188:561-569. [PMID: 33830393 DOI: 10.1007/s10549-021-06174-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/03/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Fewer than 1% of all breast cancers occur in men. As a result, a distinct lack of data exists regarding the management and outcomes in this cohort. METHODS Any male patient with pathologically confirmed breast cancer diagnosed between August 2000 and October 2017 at either Massachusetts General Hospital or Brigham and Women's Hospital/Dana-Farber Cancer Institute and their affiliate satellite locations were included. Primary chart review was used to assess clinical and pathologic characteristics. Patient and treatment variables were reported via descriptive statistics. Local-regional failure (LRF), overall survival (OS), breast cancer-specific survival (BCSS), and disease-free survival (DFS) were estimated using the Kaplan-Meier method. RESULTS 100 patients were included in this study. Median follow-up was 112 months (range 1-220 months). Approximately 1/3 of patients experienced at least a 3-month delay to presentation. 83 patients ultimately underwent mastectomy as definitive surgical treatment. 46 patients received adjuvant radiation therapy, and 37 patients received chemotherapy. Of 82 hormone receptor-positive patients with invasive cancer, 94% (n = 77) received endocrine therapy. Of the fifty-eight patients who underwent genetic testing, 15 (26%) tested positive. The 5-year OS, BCSS, DFS, and LRF rates were 91.5%, 96.2%, 86%, and 4.8%, respectively. Delay to presentation was not associated with worse survival. CONCLUSIONS Male breast cancer remains a rare diagnosis. Despite this, the majority of patients in this study received standard of care therapy and experienced excellent oncologic outcomes. Penetration for genetic testing improved over time.
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10
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Khan NAJ, Tirona M. An updated review of epidemiology, risk factors, and management of male breast cancer. Med Oncol 2021; 38:39. [PMID: 33721121 DOI: 10.1007/s12032-021-01486-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 02/24/2021] [Indexed: 01/21/2023]
Abstract
Unlike female breast cancer, male breast cancer (MBC) is rare and not very well understood. Prospective data in the management of MBC are lacking and majority of treatment strategies are adopted from the established guidelines for breast cancer in women. The understanding of biology, clinical presentation, genetics, and management of MBC is evolving but there still remains a large knowledge gap due to the rarity of this disease. Older age, high estradiol levels, klinefelter syndrome, radiation exposure, gynecomastia, family history of breast cancer, BRCA2 and BRCA1 mutation are some of the known risk factors for MBC. Routine screening mammography is not recommended for asymptomatic men. Diagnostic mammogram with or without ultrasound should be considered if there is a suspicion for breast mass. Majority of men with early-stage breast cancer undergo mastectomy whereas breast conserving surgery (BCS) with sentinel lymph node biopsy (SLNB) remains an alternative option in selected cases. Since the majority of MBC are hormone receptor positive (HR+), adjuvant hormonal therapy is required. Tamoxifen for a total of 5 to 10 years is the mainstay adjuvant hormonal therapy. The role of neoadjuvant and adjuvant chemotherapy for early-stage breast cancer is uncertain and not commonly used. The role of gene recurrence scores like oncotype Dx and mammaprint is evolving and can be used as an aid for adjuvant chemotherapy. Majority of metastatic MBC are treated with hormonal therapy with either tamoxifen, gonadotropin-releasing hormone agonist (GnRH) with aromatase inhibitors (AI), or fulvestrant. Chemotherapy is reserved for patients with visceral crisis or rapidly growing tumors.
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Affiliation(s)
- Noman Ahmed Jang Khan
- Department of Hematology and Oncology, Joan C. Edwards School of Medicine at Marshall University, 1400 Hal Greer Blvd, Huntington, WV, 25701, USA.
| | - Maria Tirona
- Department of Hematology and Oncology, Joan C. Edwards School of Medicine at Marshall University, 1400 Hal Greer Blvd, Huntington, WV, 25701, USA
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11
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Adjuvant Radiation Therapy for Male Breast Cancer-A Rare Indication? Cancers (Basel) 2020; 12:cancers12123645. [PMID: 33291697 PMCID: PMC7761961 DOI: 10.3390/cancers12123645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 11/17/2022] Open
Abstract
Due to its rarity, there are no randomized trials investigating the outcome of adjuvant radiotherapy in MBC. This study reports on patient and tumor characteristics of 41 consecutive MBC patients treated between 1990 and 2018 and on clinical outcomes after surgical resection of tumors and adjuvant radiotherapy of the chest wall or breast. Local control (LC), locoregional control (LRC), overall survival (OS), disease-free survival (DFS), and toxicity were evaluated. After a median follow-up of 80 months (95% CI: 14.6-213.8 months) there was only one recurrence, in a patient's locoregional lymph nodes 17 months after start of radiotherapy, resulting in an LC rate of 100% at 5 years and a 5-year LRC rate of 97.4% (standard deviation (SD): 0.025). Five-year DFS and OS rates were 64.6% (SD: 0.085) and 57.2% (SD: 0.082), respectively. Adjuvant radiotherapy was tolerated well without high-grade (CTCAE grade > II) adverse events. After tumor resection and adjuvant radiotherapy, LC and LRC rates in MBC patients are excellent and comparable to results found for female breast cancer (FBC) patients. However, as patients are often diagnosed with locally advanced, higher-risk tumors, distant recurrences remain the major failure pattern.
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12
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Duso BA, Trapani D, Marra A, D'Amico P, Guerini Rocco E, Fusco N, Mazzarella L, Criscitiello C, Esposito A, Curigliano G. Pharmacological management of male breast cancer. Expert Opin Pharmacother 2020; 21:1493-1504. [PMID: 32496137 DOI: 10.1080/14656566.2020.1763305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Despite its rarity, male breast cancer shows a steadily rising incidence. Given the absence of ad hoc prospective randomized clinical trials, treatment strategies are based on extrapolation from female breast cancer recommendations or solely on population-based data. AREAS COVERED This review discusses the current treatment landscape for male breast cancer in the adjuvant and in the metastatic setting. The authors also discuss the biology and genomic landscape of male breast cancer. Original research and review articles, relative to the period 2010-2019, were included in the review of the literature. EXPERT OPINION There is a major medical need to include male patients with breast cancer in prospective clinical trials. The call to equality in breast cancer care can be pursued via two divergent paths: (i) a gender-neutral delivery of breast cancer information and (ii) the creation of separate sections, for the more common female breast cancer and for the rare male ones. We propose to differentiate male breast cancer care, acknowledging unique onco-sexual and social needs that can be only partially shared.
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Affiliation(s)
- Bruno A Duso
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy.,Department of Oncology and Hematology, University of Milan , Milan, Italy.,Department of Experimental Oncology, European Institute of Oncology (IEO), IRCCS , Milan, Italy
| | - Dario Trapani
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy
| | - Antonio Marra
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy.,Department of Oncology and Hematology, University of Milan , Milan, Italy
| | - Paolo D'Amico
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy.,Department of Oncology and Hematology, University of Milan , Milan, Italy
| | - Elena Guerini Rocco
- Department of Oncology and Hematology, University of Milan , Milan, Italy.,Division of Pathology, European Institute of Oncology (IEO), IRCCS , Milan, Italy
| | - Nicola Fusco
- Department of Oncology and Hematology, University of Milan , Milan, Italy.,Division of Pathology, European Institute of Oncology (IEO), IRCCS , Milan, Italy
| | - Luca Mazzarella
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy.,Department of Experimental Oncology, European Institute of Oncology (IEO), IRCCS , Milan, Italy
| | - Carmen Criscitiello
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy
| | - Angela Esposito
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy
| | - Giuseppe Curigliano
- Division of Early Drug Development, European Institute of Oncology (IEO), IRCCS , Milan, Italy.,Department of Oncology and Hematology, University of Milan , Milan, Italy
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13
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Rolf D, Elsayad K, Meheissen MAM, Elkerm Y, Opitz C, Radke I, Bremer A, Hülskamp A, Elsaka R, Ismail HM, Elfaham E, Ismail AA, Elmansy H, Wardelmann E, Elsaid AA, Krause-Bergmann B, Tio J, Eich HT, Micke O. Impact of Adjuvant Radiation Therapy in Patients With Male Breast Cancer: A Multicenter International Analysis. Adv Radiat Oncol 2020; 5:345-349. [PMID: 32529127 PMCID: PMC7276673 DOI: 10.1016/j.adro.2020.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 01/16/2023] Open
Abstract
Purpose Breast cancer in men accounts for approximately 1% of all breast cancers. Breast cancer trials have routinely excluded men. The aim of this analysis was to determine the effect of different treatment factors, in particular, postoperative radiation therapy (RT) on long-term outcomes. Methods and Materials Seventy-one patients with male breast cancer treated in 5 closely cooperating institutions between 2003 and 2019 were analyzed. Results Almost all patients (95%) underwent surgical resection. Forty-two patients (59%) received chemotherapy, and 59 (83%) received adjuvant hormonal therapy. Of the 71 patients, 52 (73%) were treated with RT. The rate of recurrence was 20% in the whole cohort, with a locoregional recurrence rate of 3%. In the entire group, the 5-year local control (LC) was 95%, whereas 5-year progression-free survival (PFS) and 5-year overall survival (OS) were 62% and 96%, respectively. There was a lower rate of relapses after adjuvant RT (19% vs 32%, P = .05) without in-field relapse after postoperative RT (0%) versus 10% in patients without RT (P = .02). In the multivariate analysis performed, hormonal therapy administration was found to have a possible significant effect on LC and PFS. Administration of adjuvant RT and stage affect PFS. In patients who received RT, there were no grade 3 or 4 acute toxicities. Conclusions Adjuvant RT is an effective and safe treatment for male breast cancer patients with no infield relapses and better PFS. Hormonal therapy administration was found to have a possible effect on LC and PFS.
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Affiliation(s)
- Daniel Rolf
- Department of Radiation Oncology, University Hospital of Münster, Münster, Germany
| | - Khaled Elsayad
- Department of Radiation Oncology, University Hospital of Münster, Münster, Germany
| | - Mohamed A M Meheissen
- Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.,Specialized Universal Network of Oncology (SUN), Alexandria, Egypt
| | - Yasser Elkerm
- Specialized Universal Network of Oncology (SUN), Alexandria, Egypt.,Cancer Management and Research Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Carl Opitz
- Department of Gynecology & Obstetrics, University Hospital Münster, Münster, Germany
| | - Isabel Radke
- Department of Gynecology & Obstetrics, University Hospital Münster, Münster, Germany
| | - Anne Bremer
- Department of Oncology, St. Franziskus-Hospital, Münster, Germany
| | - Anne Hülskamp
- Department for Breast Diseases, St. Franziskus-Hospital, Münster, Germany
| | - Rasha Elsaka
- Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.,Specialized Universal Network of Oncology (SUN), Alexandria, Egypt
| | - Horeya M Ismail
- Specialized Universal Network of Oncology (SUN), Alexandria, Egypt
| | - Essam Elfaham
- Specialized Universal Network of Oncology (SUN), Alexandria, Egypt
| | - Abdelsalam Attia Ismail
- Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.,Specialized Universal Network of Oncology (SUN), Alexandria, Egypt
| | - Hazem Elmansy
- Specialized Universal Network of Oncology (SUN), Alexandria, Egypt.,Cancer Management and Research Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Eva Wardelmann
- Gerhard-Domagk-Institute of Pathology, University Hospital Münster, Münster, Germany
| | - Amr Abdelaziz Elsaid
- Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.,Specialized Universal Network of Oncology (SUN), Alexandria, Egypt
| | | | - Joke Tio
- Department of Gynecology & Obstetrics, University Hospital Münster, Münster, Germany
| | - Hans Theodor Eich
- Department of Radiation Oncology, University Hospital of Münster, Münster, Germany
| | - Oliver Micke
- Department of Radiotherapy and Radiation Oncology, Franziskus Hospital Bielefeld, Bielefeld, Germany
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14
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Lomma C, Chan A, Chih H, Reid C, Peter W. Male Breast Cancer in Australia. Asia Pac J Clin Oncol 2020; 17:e57-e62. [PMID: 31957255 DOI: 10.1111/ajco.13299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/25/2019] [Indexed: 11/28/2022]
Abstract
AIMS Male breast cancer is rare and treatment recommendations are based on female breast cancer guidelines. We analyzed an Australian dataset of patients with early breast cancer (including ductal carcinoma in situ, DCIS) for demographic, pathological and treatment information. The primary objective was to compare treatment delivery for males versus females. METHODS Australian data from the BreastSurgANZ Quality Audit (BQA) from 1 October 2006 and 30 September 2016 were analyzed. Demographic and pathological information was obtained and compared between males and females. Treatment recommendations were compared to BreastSurgANZ Key Performance Indicators (KPIs) and National Comprehensive Cancer Network (NCCN) guidelines to assess for adherence to national and international guidelines, respectively. RESULTS A total of 99,768 breast cancer episodes were analyzed, comprising 585 males (544 invasive; 41 DCIS) and 99 183 (99.4%) females (85 596 invasive; 13 525 DCIS; 62 unknown). Compared with females, males were older at diagnosis, more likely to be hormone receptor-positive and lymph node-positive disease, and more likely to have mastectomy. The proportion of males undergoing breast conserving surgery receiving radiotherapy was the only BreastSurgANZ KPI that was not met. Males were less likely to receive adjuvant chemotherapy than females using NCCN guidelines. CONCLUSION Australian males with breast cancer account for 0.6% of breast cancer incidence and have similar clinico-pathological features as reported internationally. Overall, there is good compliance with the surgical KPIs, and adherence to NCCN guidelines for adjuvant systemic treatment is similar to previous international studies.
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Affiliation(s)
- Chris Lomma
- Breast Cancer Research Centre-WA, Western Australia, Australia
| | - Arlene Chan
- Breast Cancer Research Centre-WA, Western Australia, Australia.,School of Medicine, Curtin University, Perth, Western Australia, Australia
| | - HuiJun Chih
- School of Public Health, Curtin University, Perth, Western Australia, Australia
| | - Christopher Reid
- School of Public Health, Curtin University, Perth, Western Australia, Australia
| | - Willsher Peter
- Breast Cancer Research Centre-WA, Western Australia, Australia
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15
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Yadav S, Karam D, Riaz IB, Xie H, Durani U, Duma N, Giridhar KV, Hieken TJ, Boughey JC, Mutter RW, Hawse JR, Jimenez RE, Couch FJ, Ferre RAL, Ruddy KJ. Male breast cancer in the United States: Treatment patterns and prognostic factors in the 21st century. Cancer 2020; 126:26-36. [PMID: 31588557 PMCID: PMC7668385 DOI: 10.1002/cncr.32472] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/02/2019] [Accepted: 07/29/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND Male breast cancer (MBC) is a rare disease for which there is limited understanding of treatment patterns and prognostic factors. METHODS Men with TNM stage I to stage III breast cancer diagnosed between 2004 and 2014 in the National Cancer Data Base were included. Trends in treatment modalities were described using the average annual percentage change (AAPC) and estimated using Joinpoint software for the analysis of trends. Kaplan-Meier curves and the multivariate Cox proportional hazards regression model were used to compare survival between subgroups and to identify prognostic factors. RESULTS A total of 10,873 MBC cases were included, with a median age at diagnosis of 64 years. Breast-conserving surgery was performed in 24% of patients, and 70% of patients undergoing breast conservation received radiotherapy. Approximately 44% of patients received chemotherapy, and 62% of patients with estrogen receptor-positive disease received endocrine therapy. Oncotype DX was ordered in 35% of patients with lymph node-negative, estrogen receptor-positive/human epidermal growth factor receptor 2 (HER2)-negative tumors. During the study period, there was a significant increase in the rates of total mastectomy, contralateral prophylactic mastectomy, radiotherapy after breast conservation, ordering of Oncotype DX, and the use of endocrine therapy (P < .05). On multivariate analysis, factors found to be associated with worse overall survival were older age, black race, higher Charlson Comorbidity Index, high tumor grade and stage of disease, and undergoing total mastectomy. Residing in a higher income area; having progesterone receptor-positive tumors; and receipt of chemotherapy, radiotherapy, and endocrine therapy were associated with better overall survival. CONCLUSIONS Despite the lack of prospective randomized trials in patients with MBC, the results of the current study demonstrated that the treatment of this disease has evolved over the years. These findings further the understanding of the modern treatment and prognosis of MBC, and identify several areas for further research.
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Affiliation(s)
- Siddhartha Yadav
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Dhauna Karam
- Department of Community Internal Medicine, Mayo Clinic Health System at Austin and Albert Lea, Albert Lea, MN 56007, USA
| | - Irbaz Bin Riaz
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Hao Xie
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Urshila Durani
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Narjust Duma
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Karthik V. Giridhar
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Tina J. Hieken
- Department of Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Judy C. Boughey
- Department of Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Robert W. Mutter
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - John R. Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
| | - Rafael E. Jimenez
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Fergus J. Couch
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Roberto A. Leon Ferre
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Kathryn J. Ruddy
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
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16
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Popa-Nimigean V, Ahmed M. Current state of surgical management for male breast cancer. Transl Cancer Res 2019; 8:S457-S462. [PMID: 35117123 PMCID: PMC8798217 DOI: 10.21037/tcr.2019.04.09] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/15/2019] [Indexed: 11/17/2022]
Abstract
Management guidelines for male breast cancer have long been extrapolated from those for female breast cancer, which are based on large, randomised-controlled trials. While there are no randomised-controlled trials for male breast cancer management mainly due to the rarity of the disease, the only type of evidence available comes from retrospective studies, subject to selection biases and small sample sizes. Male breast cancer, while similar to female breast cancer in many respects, has some important differences that can affect management choices. Most cancers are oestrogen and progesterone receptor positive, and usually more advanced at presentation than female breast cancer. This is likely due to less breast parenchyma in male patients and delay to diagnosis. The classical management option for male patients with breast cancer is mastectomy, due to small tumour-to-breast ratio and often central position of the tumour. Breast conserving surgery is still useful in selected cases and has similar outcomes when compared to mastectomies in these patients. For patients with clinically negative lymph nodes, sentinel lymph node biopsy offers the same prognosis as axillary lymph node dissection, but with less associated morbidity. Endocrine therapy is of particular use, due to high levels of receptor positivity. Adjuvant endocrine therapy seems to significantly improve overall survival of male patients with breast cancer and while no prospective evidence exists for neoadjuvant hormonal therapy, there is hope that this is a useful management option as well. Radiotherapy is also useful in an adjuvant setting, particularly when combined with endocrine therapy. Better identification of patients, less delay from presentation to diagnosis and more collaborative efforts are key in improving the management, prognosis and outcomes of patients with male breast cancer.
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Affiliation(s)
| | - Muneer Ahmed
- Division of Cancer Studies, King's College London, London WC2R 2LS, UK
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17
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De La Cruz LM, Thiruchelvam PTR, Shivani J, Trina J, Blankenship SA, Fisher CS. Saving the Male Breast: A Systematic Literature Review of Breast-Conservation Surgery for Male Breast Cancer. Ann Surg Oncol 2019; 26:3939-3944. [PMID: 31250345 DOI: 10.1245/s10434-019-07588-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Indexed: 11/18/2022]
Abstract
BACKGROUND Male breast cancer (MBC) management is extrapolated from female BC. Mastectomy remains the most frequently used surgical procedure for male breast cancer (MBC). We performed a literature review to assess the use of breast-conservation (BCS) in MBC as well as outcomes following BCS. METHODS A systematic literature was performed, and articles screened to identify studies that measured overall survival (OS), disease-free survival (DFS), or local recurrence (LR) in patients undergoing BCS. Weighted averages based on study size were performed for LR, DFS, and 5-year OS. RESULTS Eight studies met the inclusion criteria with male breast surgery cases, and 859 (14.7%) underwent BCS. The mean follow-up time was 53 months, and mean age was 62.6 years, with stage II as the most common presentation. Two studies reported that 50-71.4% of patients underwent sentinel lymph node biopsy, and four studies reported axillary lymph node dissection in 14.3-100%. Five studies reported on adjuvant radiation therapy in 12.0-100% of total patients undergoing BCS. Four studies reported use of hormonal therapy in 73.8-100% of patients. Four studies reported use of chemotherapy in 25-66.7% of patients. Seven studies reported LR among 116 patients, with a weighted average of 9.9%. Three studies reported on DFS in 14 patients, with a weighted average 85.6%. Two studies report OS in 143 patients with a weighted average of 84.4%. CONCLUSIONS Breast conservation may be considered a safe alternative in the surgical treatment of MBC. Future research should focus on better standardization of local therapy for MBC and improved reporting of outcomes.
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Affiliation(s)
- L M De La Cruz
- Department of Surgery, INOVA Health System, Shar Cancer Institute, FAIRFAX, VA, USA.
| | | | - J Shivani
- Department of Surgery, Imperial College Healthcare, London, UK
| | - J Trina
- Department of Surgery, Imperial College Healthcare, London, UK
| | - S A Blankenship
- Department of Obstetrics and Gynecology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - C S Fisher
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
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18
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Abstract
BACKGROUND Male breast cancer (MBC) is a rare disease for which no randomised controlled trials (RCT) have been conducted to determine optimal surgical management. The available data have been reviewed to identify reasonable options and reveal areas in need of investigation. METHODS All published series on the surgical management of MBC have been reviewed to determine approaches to treatment of the primary, the breast and the axilla together with the psychological sequelae of surgery. FINDINGS Mastectomy is still the major surgical offer but a convincing case can be made for the use of neoadjuvant endocrine treatment in order to facilitate breast conserving surgery. Sentinel node biopsy has been successfully used for staging MBC although nomograms for prediction of nodal status are inadequately calibrated. There are psychological sequelae of mastectomy in males and as yet no evidence that the needs of those with MBC are being met. CONCLUSIONS Collaborative studies are required so that men can participate in meaningful RCTs to provide an evidence-based rational foundation for the surgery of MBC.
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Affiliation(s)
- Ian S Fentiman
- Research Oncology, Guy's Hospital, 3rd Floor Bermondsey Wing, London, SE1 9RT, UK.
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19
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Wang W, Xu X, Tian B, Wang Y, Du L, Sun T, Shi Y, Zhao X, Jia Y, Xi Y, Jing J. Clinical features of patients with male breast cancer in Shanxi province of China from 2007 to 2016. J Investig Med 2018; 67:699-705. [PMID: 30368484 DOI: 10.1136/jim-2018-000823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2018] [Indexed: 01/11/2023]
Abstract
This study aims to understand the clinical features, treatment, and prognosis of patients with male breast cancer (MBC) in Shanxi province of China from 2007 to 2016. Data for 77 patients with MBC were collected for analysis. Immunohistochemistry, pathological results, and other data such as demographic characteristics (age, marital status, smoking history, drinking history, and family history of cancer) as well as clinical data were investigated by retrieving information from the patients' medical records. A total of 12,404 patients were diagnosed with breast cancer between 2007 and 2016, and 77 were patients with MBC among them. The median diagnosis age of patients with MBC was 62 years (range, 24-84 years). The most common complaint was a painless lump in the breast, accounting for 68.8% of the patients, and the main pathological type in MBC was infiltrating ductal carcinoma (66.2%). In terms of hormone receptors, 80.5% (62/77) of patients with MBC were estrogen receptor positive, 75.3% (58/77) of patients were progesterone receptor positive, and only 6.5% (5/77) of patients were HER2 overexpressing. The multivariant Cox proportional hazards regression analysis showed that M stage is an independent prognostic factor (p=0.018, HR=18.791, 95% CI 1.663 to 212.6). The epidemiological and clinical features of Chinese MBC are similar to that of other countries. As the Chinese public have limited knowledge of MBC, it is necessary to increase awareness among them about it. Further research with a large sample size is required for better understanding of the risks associated with MBC.
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Affiliation(s)
- Weigang Wang
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Xiaoqin Xu
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Baoguo Tian
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Yan Wang
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Lili Du
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Ting Sun
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Yanchun Shi
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Xianwen Zhao
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
| | - Yali Jia
- Department of Preventive Health Care, Shanxi Cancer Hospital, Shanxi, China
| | - Yanfeng Xi
- Department of Pathology, Shanxi Cancer Hospital, Shanxi, China
| | - Jiexian Jing
- Department of Etiology and Tumor Marker Laboratory, Shanxi Cancer Hospital, Shanxi, China
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20
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MESH Headings
- Aftercare
- Antineoplastic Agents, Hormonal/adverse effects
- Antineoplastic Agents, Hormonal/therapeutic use
- Aromatase Inhibitors/therapeutic use
- Breast Neoplasms, Male/diagnosis
- Breast Neoplasms, Male/drug therapy
- Breast Neoplasms, Male/genetics
- Breast Neoplasms, Male/surgery
- Chemotherapy, Adjuvant
- Diagnosis, Differential
- Genes, BRCA1
- Genes, BRCA2
- Humans
- Male
- Mutation
- Prognosis
- Risk Factors
- Tamoxifen/adverse effects
- Tamoxifen/therapeutic use
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Affiliation(s)
- Sharon H Giordano
- From the Departments of Health Services Research and Breast Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston
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21
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Wang K, Wang QJ, Xiong YF, Shi Y, Yang WJ, Zhang X, Li HY. Survival Comparisons Between Early Male and Female Breast Cancer Patients. Sci Rep 2018; 8:8900. [PMID: 29891971 PMCID: PMC5995882 DOI: 10.1038/s41598-018-26199-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/23/2018] [Indexed: 12/18/2022] Open
Abstract
We aimed to compare the overall survival (OS) and standardized mortality rate (SMR) of the male breast cancer (MBC) with female breast cancer (FBC) after propensity score matching. Based on the Surveillance, Epidemiology, and End Results (SEER), the early breast cancer patients (T1-2N0-2M0) were extracted from 1998-2007. This study included 1,111 and 2,151 patients with early MBC and FBC, respectively, whose clinicopathological characteristics were well balanced. At a mean follow-up time of 97 months, 10-year OS rate was 58.3% in the MBC group and 68.7% in the FBC (log-rank test, P < 0.001; hazard ratio (HR) = 1.45, 95% confidence interval (CI) = 1.29 to 1.64). Adjusted HR for OS between MBC and FBC were revealed from propensity score matched-multivariable Cox proportional hazards models (HR = 1.53, 95% CI = 1.35 to 1.73). Similar adjusted SMRs between MBC and FBC ((SMR = 1.98, 95% CI = 1.83,2.14) for FBC and (SMR = 2.07, 95% CI = 1.88-2.28) for MBC) were observed. The nomogram was constructed for FBC, and predicted probabilities were generally good (C-index = 0.71), whose area under curve is higher than TNM stage classification (0.74 vs 0.62). OS was significantly decreased among early MBC patients compared with FBC, but similar SMRs and its trends by age groups were observed between MBC and FBC except for young patients.
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Affiliation(s)
- Kang Wang
- Department of the Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical university, Chongqing Medical University, Chongqing, 400016, China.
| | - Qiu-Juan Wang
- Department of the Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical university, Chongqing Medical University, Chongqing, 400016, China
| | - Yong-Fu Xiong
- Department of the Gastrointestinal Surgery, The First Affiliated hospital of Chongqing Medical university, Chongqing Medical University, Chongqing, 400016, China
| | - Yang Shi
- Department of Epidemiology and Biostatistics, West China School of Public Health, Sichuan University, Sichuan, China
| | - Wen-Jing Yang
- Department of the Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical university, Chongqing Medical University, Chongqing, 400016, China
| | - Xiang Zhang
- Department of the Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical university, Chongqing Medical University, Chongqing, 400016, China.
| | - Hong-Yuan Li
- Department of the Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical university, Chongqing Medical University, Chongqing, 400016, China.
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22
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Smoking and FGFR2 rs2981582 variant independently modulate male breast cancer survival: A population-based study in Tuscany, Italy. Breast 2018; 40:85-91. [PMID: 29709729 DOI: 10.1016/j.breast.2018.04.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/29/2018] [Accepted: 04/22/2018] [Indexed: 11/20/2022] Open
Abstract
AIM Male breast cancer (MBC) is a rare disease and recommendations for its clinical management are often extrapolated from those for female breast cancer, even if breast cancer (BC) has different characteristics in the two sexes. The purpose of this study was to assess the influence of several individual characteristics including clinico-pathological, lifestyle and genetic factors on overall survival (OS) of a relatively large and well characterized population-based series of 166 MBCs enrolled in Tuscany. METHODS We genotyped MBC cases at BRCA1/2 genes and at 9 candidate BC susceptibility SNPs. Kaplan-Meier method and multivariate Cox regression, adjusted for several individual characteristics were used. To reduce a possible selection bias related to the interval between diagnosis and enrolment of MBC cases into the study, we used the date of blood donation as the date of the start of observation for survival analysis. RESULTS Only smoking habits had a significant effect on OS at 10 years (for current smokers, HR: 3.34; 95% CI 1.45-7.68; p = 0.004), while lymph node status fell short of reaching statistical significance (for pN positive, HR: 2.07; 95% CI 0.93-4.55; p = 0.07). In the same multivariate analysis we found a significantly higher OS in cases with FGFR2 rs2981582 variant in the dominant transmission model (HR: 0.29; 95% CI: 0.13-0.62; p = 0.028). A sensitivity analysis with left truncation showed similar results. CONCLUSIONS Our results may contribute to shed light on factors influencing MBC survival suggesting an important role for cigarette smoking and FGFR2 rs2981582 variant, and provide clues for better patient management.
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