Male breast cancer: A multicenter study in Aragon over 27 years.

INTRODUCTION: Male breast cancer accounts for 1% of all breast cancers. Its low frequency leads to a lack of awareness, resulting in significant diagnostic delays. Additionally, this limits the available evidence, which primarily uses diagnostic-therapeutic algorithms based on women. OBJECTIVES: To analyze the prevalence, clinical presentation, anatomical and pathological characteristics, and prognosis of male breast cancer using one of the largest series available. Secondarily, to compare our data with studies conducted in women. MATERIALS AND METHODS: A multicenter, observational, descriptive, retrospective study was conducted in the autonomous community of Aragon, Spain, from 1995 to 2022 including men with a pathological diagnosis of breast cancer. RESULTS: A total of 148 patients were included, with a prevalence of 1%. The most common clinical presentation was a palpable retroareolar mass. Invasive ductal carcinoma was the most frequent type (88.89%), and luminal B was the predominant subtype (47.76%). Surgery was the most utilized treatment; mastectomy was performed in 90.34% and AL in 46.89%. At diagnosis, 52.46% had extramammary involvement. The recurrence rate was 24.1%, and the mortality attributed to the disease was 14.6%. CONCLUSIONS: There is a high rate of metastatic involvement at diagnosis, a high percentage of mutilating surgeries, and a high number of recurrences compared to available studies on males. Additionally, a worse prognosis is observed compared to breast cancer in women, despite these tumors having a less aggressive molecular subtype. These findings highlight the importance of conducting studies focused on men to develop specific protocols.

Tratamiento quirúrgico de la fibromatosis agresiva en relación con cesárea previa / Surgical treatment of aggressive fibromatosis in relation to previous cesarean section

Introducción. Los tumores desmoides son lesiones de los tejidos blandos, histológicamente benignas, poco frecuentes y con gran agresividad local y carencia de potencial metastásico. Se relacionan estrechamente con antecedentes traumáticos o quirúrgicos, como la cesárea, y su tratamiento generalmente es quirúrgico. Métodos. Presentamos una serie de tres pacientes intervenidas en nuestro centro durante el año 2020. Se revisan sus antecedentes y se describe su tratamiento. Resultados. En todas nuestras pacientes se encontró algún antecedente quirúrgico, dos cesáreas y una resección de un disgerminoma. El tratamiento empleado fue la resección quirúrgica con márgenes libres y reparación del defecto mediante malla. Conclusiones. El tumor desmoide es una patología poco frecuente, su diagnóstico se realiza mediante exámenes imagenológicos y se confirma con el estudio histológico; es importante hacer el diagnóstico diferencial con el sarcoma. La cirugía radical sigue siendo el tratamiento de elección, aunque algunos autores proponen el tratamiento conservador.

Introduction. Desmoid tumors are soft tissue lesions, histologically benign, rare and with great local aggressiveness and lack of metastatic potential. They are closely related to traumatic or surgical history such as caesarean section. Their treatment is generally surgical. Methods. We present a case series of three patients operated on in our center during the year 2020. Their history is reviewed and their type of treatment is presented. Results. In all our patients, surgical history was found (two caesarean sections and one resection of a dysgerminoma). The treatment used was surgical resection with free margins and mesh repair of the defect. Conclusions. Desmoid tumor is a rare pathology; its diagnosis is made by imaging studies, and confirmed by histology. It is important to make a differential diagnosis with sarcoma. Radical surgery remains the treatment of choice, although some authors propose conservative treatment.

CBCRisk model to determine the risk of contralateral breast cancer in sporadic breast cancer.

INTRODUCTION: The great majority of breast cancer (BC) cases are diagnosed in women who have no known family history of the disease and are not carriers of any risk mutation. During the past few decades an increase in the number of contralateral prophylactic mastectomy (CPM) has been produced in these patients. The CBCRisk model calculates the absolute risk of suffering from contralateral breast cancer (CBC); thus, it can be used to counselling patients with sporadic breast cancer. METHOD: An observational, retrospective study including sporadic breast cancer patients treated with contralateral prophylactic mastectomy has been conducted between 2017 and 2019. A descriptive and comparative study with one variation of logistic regression has been carried out in order to identify predictive factors of occult tumors (OT) and medium/high risk damage (MHRD). Evaluation of the CBCRisk model published in 2017 and different limit values for the CPM recommendation. RESULTS: 42 patients were selected. Incidence of MHRD and OT was lower than that described in the literatura (9.52%MHRD, 2.38%OT). None of the evaluated variables reached statistical significance for predicting injuries. The average value of CBCRisk 5 years ahead found in patients with pathological findings was 2.08 (DE 0.97), higher than the average value of the whole group (1.87 ± 0.91) and the subgroup without pathological findings (1.84 ± 0.91). Only values >3 for CBCRisk were considered statistically significant (P = .04) for the prediction of histological lesions. CONCLUSION: Patients with sporadic breast cancer should be adequately informed about the estimated risks and benefits of undergoing a contralateral prophylactic mastectomy. The CBCRisk may be useful for the counseling of these patients, but it requires validation in larger and prospective cohorts.

Nipple sparing mastectomy with a de-epithelialized derma-fat flap (modified Spira technique) and direct-to implant reconstruction. / Mastectomía preservadora de piel con colgajo dermograso desepitelizado (técnica de Spira modificada) y reconstrucción mediante implante directo.

INTRODUCTION: Spira technique is a type of nipple-sparing mastectomy that allows immediate reconstruction (IBR), ideal for ptosic breasts. Although, controversy persists regarding oncological results in breast cancer. The aim is to analyze complications, cosmetic outcomes, causes of reoperation and oncological results. METHODS: Retrospective observational analysis of patients undergone surgery during 2003-2018 in our center. Study population is based on patients with breast carcinoma or undergoing prophylactic mastectomy due to high-risk, in which a skin-sparing mastectomy with a de-epithelialized derma-fat flap (modified Spira technique) and direct to implant reconstruction was performed. Short and long-term complications, sequelae, tumor recurrence and survival rates are analyzed. RESULTS: A total of 247 mastectomies with immediate reconstruction in 139 patients, 216 bilateral (87.4%) and 31 unilateral (12.5%) were performed. 121 therapeutic (49%) and 126 prophylactic (51%). Median follow-up 81 months. Complications were observed in 16.2%; skin necrosis 5.3% and 5 cases of NAC necrosis (2%). Reoperation rate due to cosmetic sequelae was 17.4% (capsular contracture was the most frequent,11.3%) and a 39.3% of these patients have received RT. Recurrence of 14% (0.8% skin, 3.3% locoregional and 9.9% metastatic), 8 patients died (6.6%). Rates of FSD and OS were 92.6% and 93.3% respectively. CONCLUSION: Spira mastectomy is a safe option and provides good cosmetic and oncologic results as breast cancer treatment and prophylaxis in moderate-large ptosic breasts.

CBCRisk model to determine the risk of contralateral breast cancer in sporadic breast cancer. / Modelo CBCRisk para determinar el riesgo de cáncer de mama contralateral en el cáncer de mama esporádico.

INTRODUCTION: The great majority of breast cancer (BC) cases are diagnosed in women who have no known family history of the disease and are not carriers of any risk mutation. During the past few decades an increase in the number of contralateral prophylactic mastectomy (CPM) has been produced in these patients. The CBCRisk model calculates the absolute risk of suffering from contralateral breast cancer (CBC); thus, it can be used to counselling patients with sporadic breast cancer. METHOD: An observational, retrospective study including sporadic breast cancer patients treated with contralateral prophylactic mastectomy has been conducted between 2017 and 2019. A descriptive and comparative study with one variation of logistic regression has been carried out in order to identify predictive factors of occult tumors (OT) and medium/high risk damage (MHRD). Evaluation of the CBCRisk model published in 2017 and different limit values for the CPM recommendation. RESULTS: 42 patients were selected. Incidence of MHRD and OT was lower than that described in the literatura (9.52% MHRD, 2.38% OT). None of the evaluated variables reached statistical significance for predicting injuries. The average value of CBCRisk 5 years ahead found in patients with pathological findings was 2.08 (SD 0.97), higher than the average value of the whole group (1.87 ± 0.91) and the subgroup without pathological findings (1.84 ± 0.91). Only values ≥ 3 for CBCRisk were considered statistically significant (p = 0.04) for the prediction of histological lesions. CONCLUSION: Patients with sporadic breast cancer should be adequately informed about the estimated risks and benefits of undergoing a contralateral prophylactic mastectomy. The CBCRisk may be useful for the counseling of these patients, but it requires validation in larger and prospective cohorts.

Contralateral breast cancer and tumor recurrence in BRCA1/2 carriers and non-carriers at a high risk of hereditary breast cancer after bilateral mastectomy. / Cáncer de mama contralateral y recurrencia en portadoras BRCA1/2 y no portadoras con alto riesgo de cáncer de mama hereditario tras mastectomía bilateral.

INTRODUCTION: Contralateral prophylactic mastectomy (CPM) has been reported to reduce risk of contralateral breast cancer (CBC) by at least 90%.In addition, BRCA carriers presents higher risk of ipsilateral recurrence and a second primary tumor. The aim is to evaluate risk of CBC and recurrence and to analyze predictive factors in BRCA1/2 mutation carriers and non-carriers at high-risk of hereditary breast cancer patients. METHODS: Retrospective observational study. 46 patients underwent bilateral mastectomy during 2004-2018. RESULTS: Cohort comprised 9 patients BRCA1,12 BRCA2 and 25 at high-risk without mutation. Median follow-up 79 months. 16 patients recently diagnosed and 30 previously treated by breast cancer whom underwent CPM at second time (because of later detection of BRCA mutation in 10 cases). The external lateral incision was most frequent surgical technique. In all patients immediate reconstruction was performed. In CPM pieces, 4 in situ carcinoma, 3 invasive and 1 atypical hyperplasia were found. The incidence of occult contralateral cancer was 15.2%. Recurrence was observed in 5 patients a media of 21.2 months after surgery. FSD was 83.74 months and OS 84.33 months. Regression models identified BRCA1/2 mutation and high risk without mutation as significant occult tumor predictive factors while tumor size≥2cm was predictive of recurrence. CONCLUSIONS: In our series we found a10.8% recurrence despite CPM and 7 patients (15.2%) would have developed a CBC in subsequent years.

Effect of complete pathological response related factors after neoadjuvant chemotherapy on skin-sparing mastectomy and breast reconstruction. / Factores relacionados con la obtención de respuesta patológica completa tras quimioterapia neoadyuvante en cáncer de mama y su efecto sobre la reconstrucción tras mastectomía ahorradora de piel.

INTRODUCTION: Immediate breast reconstruction after skin-sparing mastectomy in patients undergoing neoadjuvant chemotherapy is still controversial. The objective of this study is to determine factors related with axillary downstaging and complete pathological response (CPR), and how CPR influences the decision to perform bilateral mastectomy with immediate reduction. METHODS: A retrospective analysis of breast cancer patients who had undergone neoadjuvant chemotherapy and bilateral mastectomy with immediate reduction between 2000-2018 was performed. Two groups were compared:1) CPR and 2) non-CPR. Descriptive and comparative statistical analyses are provided. RESULTS: 69 patients; 26 (37.68%) reached CPR and 43 (62.32%) non-CPR. Median follow-up of 45.3 months (IQR: 23.0-94.0). Age under 35 (p <.001), small size tumor at diagnosis (p=.006) and subtype HER2 (p <.001) were associated with higher rates of CPR in bivariate analysis. Axillary negativization rate was 80% in group 1 and 59.3% in group 2, and lymphadenectomy rates were similar (73.1% and 83.72%). CONCLUSIONS: CPR after neoadjuvant chemotherapy did not influence the decision to perform bilateral mastectomy with immediate reduction.

Direct-to-implant breast reconstruction after neoadjuvant chemotherapy: A safe option? / Reconstrucción inmediata mediante implante directo tras quimioterapia neoadyuvante. ¿Es una práctica segura?

INTRODUCTION: Immediate reconstruction (IBR) after mastectomy in patients who have received neoadjuvant chemotherapy (NACT) remains controversial. The aim of this study is to analyze and compare oncological results as well as complication and reoperation rates in patients undergoing NACT and a control group. METHODS: Retrospective observational case-control study of patients with breast cancer who underwent bilateral mastectomy and direct-to-implant IBR (BMIBR) from 2000-2016. The group that received NACT was matched 1:5 to patients without NACT (Control group). We evaluated differences between groups using the χ2 or Fisher test (qualitative variables), Mann-Whitney U or Student's t-test (quantitative variables). The survival analysis was performed using Kaplan-Meier curves and log-rank test (SPSS 22.0). RESULTS: The study included a total of 171 patients with BMIBR: 62 patients (36.3%) after NACT and 109 patients (63.7%) in the control group without NACT. Median follow-up was 52.0 (IQR: 23.0-94.0) months. In both groups, the indication for BMIBR was patient choice (32.7%). There were no statistically significant differences between groups in terms of complication rate (24.2% in the NACT group and 19.3% in the control group [P=.44]), but differences in oncological results were found. Patients in the NACT Group had three times more risk of recurrence at a given time than patients in the control group (3.009 [1.349-6.713]) according to the univariate analysis. CONCLUSIONS: Direct-to-implant IBR after skin-sparing mastectomy is a viable option for breast cancer patients undergoing NACT.

Cystic lesion of pectoralis minor muscle: learning from mistakes.

Hydatidosis is a frequent infestation in large endemic areas, caused by helminths. Primary localization within the muscle or bone tissues is rare. We report the case of a 52-year-old woman with a cystic lesion located in the right pectoralis minor muscle, who was initially diagnosed with cystic lymphangioma by imaging examination. She was submitted for surgical treatment; in block resection of the tumor along with the involved muscle was performed. The histopathological diagnosis was of hydatid cyst. The contribution of the ancillary lab tests is analyzed for a precise preoperative diagnostic approach. This case well illustrates that the most likely is not always what it appears to be. Facing of a cystic lesion in the lungs, liver or muscle, clinicians should always think on hydatid disease, particularly in endemic areas.

Cystic lesion of pectoralis minor muscle: learning from mistakes

Hydatidosis is a frequent infestation in large endemic areas, caused by helminths. Primary localization within the muscle or bone tissues is rare. We report the case of a 52-year-old woman with a cystic lesion located in the right pectoralis minor muscle, who was initially diagnosed with cystic lymphangioma by imaging examination. She was submitted for surgical treatment; in block resection of the tumor along with the involved muscle was performed. The histopathological diagnosis was of hydatid cyst. The contribution of the ancillary lab tests is analyzed for a precise preoperative diagnostic approach. This case well illustrates that the most likely is not always what it appears to be. Facing of a cystic lesion in the lungs, liver or muscle, clinicians should always think on hydatid disease, particularly in endemic areas.

Influence of radiotherapy on immediate breast reconstruction after skin-sparing mastectomy. Before or after: Does it matter? / Influencia de la radioterapia sobre la reconstrucción mamaria inmediata posmastectomía ahorradora de piel. ¿Afecta igual antes que después?

INTRODUCTION: The use of bilateral mastectomy with immediate reconstruction is increasing. Radiotherapy increases complications; however, its uses have been extended. We evaluate the profile of the complications and long-term failure of reconstruction through a comparative analysis with a cohort without radiotherapy. METHODS: Retrospective analysis of patients with breast cancer who underwent mastectomy with immediate reconstruction during 2000-2016. Three groups were evaluated: 1) patients who received radiotherapy and posterior breast reconstruction; 2) patients with bilateral mastectomy and immediate reconstruction following adjuvant radiotherapy; 3) patients who did not receive radiotherapy at all. Demographic variables, surgical techniques and postoperative morbidity were assessed. Outcomes and complications were compared between cohorts. Analysis was done with SPSS Statistics. RESULTS: 296 bilateral mastectomies with immediate reconstruction. Mean age 48.4 ± 9. No differences in comorbidity in the different groups. Group 1: 125 patients. Radiotherapy given 21.69 months before, on average. Complication rate: 20%. Failure of reconstruction rate: 20%. Reoperation rate: 33.6%. Group 2: 71 patients. Radiotherapy after reconstruction: mean 134.2 days. Complication rate: 36.7%. Failure of reconstruction rate: 21.1%. Reoperation rate: 16.9%. Group 3: 100 patients. Complication rate: 25%. Failure of reconstruction rate: 21%. Reoperation rate: 20%. Morbidity published in patients after radiotherapy before or after reconstruction is higher than complications in patients who did not receive radiotherapy. Even so, in our series they were similar. We found a higher sequelae rate in group 1, with almost double the rate of reoperation. CONCLUSIONS: Patients who underwent radiotherapy before reconstruction had a higher risk of developing failure of reconstruction and needing reoperation than those patients who received radiotherapy after breast reconstruction or did not receive radiotherapy at all.

Tratamiento de la base apendicular por laparoscopia mediante el uso de endograpadoras: análisis de nuestros resultados / Appendicular stump laparoscopic management: our results analysis

Objetivo: El objetivo de este estudio es analizar los resultados de nuestro centro en cuanto al cierre del muñón apendicular en la apendicectomía laparoscópica, mediante el empleo de endograpadora. Material y método: Análisis retrospectivo de las apendicectomías laparoscópicas con sección de la base apendicular con endograpadora, llevadas a cabo entre enero de 2013 y marzo de 2015, recogiendo variables demográficas, clínicas y de técnica quirúrgica. Resultados: Se incluyeron en el análisis 238 pacientes. Se registraron complicaciones en 41 pacientes, con una tasa de reingreso del 5% y un 2,5% de pacientes reintervenidos. La estancia media posquirúrgica fue de 3,64 días. Discusión y conclusiones: En el cierre del muñón apendicular, la endograpadora se presenta como una técnica adecuada en cuanto a estancia postoperatoria y complicaciones posquirúrgicas. A pesar de las ventajas de su uso, debe valorarse en apendicectomías no complicadas el empleo de otras técnicas como endoloops.

Objective: The objective of this study is to analyse the results in our centre as regards the closure of the appendix stump in laparoscopic appendectomy using an endo-stapler. Material and methods: A retrospective analysis, collecting the demographic, clinical, and surgical technique variables, was conducted on laparoscopic appendectomies with section of the appendix base with an endo-stapler performed between January 2013 and March 2015. Results: A total of 239 patients were included in the analysis. Complications were recorded in 41 patients, with a re-admission rate of 5%, and 2.5% of patients received further surgery. The mean post-surgical stay was 3.64 days. Discussion and conclusions: The endo-stapler is a suitable technique in the closure of the appendix stump, as regards post-surgical hospital stay and complications. Despite the advantages of its use, the employment of other techniques, such as endo-loops, should be evaluated in non-complicated appendectomies.