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Metaplastic breast cancer

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https://www.readbyqxmd.com/read/29344276/the-clinicopathological-features-and-survival-outcomes-of-different-histological-subtypes-in-triple-negative-breast-cancer
#1
Hong-Ye Liao, Wen-Wen Zhang, Jia-Yuan Sun, Feng-Yan Li, Zhen-Yu He, San-Gang Wu
Purpose: To determine the clinicopathological features and survival outcomes of triple-negative breast cancer (TNBC) according to different histological subtypes. Methods: Using the Surveillance, Epidemiology, and End Results database, we included TNBC cases in 2010-2013. The effect of histological subtype on breast cancer-specific survival (BCSS) and overall survival (OS) were analyzed using univariate and multivariate analyses. Results: A total of 19,900 patients were identified. Infiltrating ductal carcinoma not otherwise specified accounted for 91...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29330212/early-and-locally-advanced-metaplastic-breast-cancer-presentation-and-survival-by-receptor-status-in-surveillance-epidemiology-and-end-results-seer-2010-2014
#2
Mary C Schroeder, Priya Rastogi, Charles E Geyer, Lance D Miller, Alexandra Thomas
BACKGROUND: Metaplastic breast cancer (MBC) is a rare disease subtype characterized by an aggressive clinical course. MBC is commonly triple negative (TN), although hormone receptor (HR) positive and human epidermal growth receptor 2 (HER2) positive cases do occur. Previous studies have reported similar outcomes for MBC with regard to HR status. Less is known about outcomes for HER2 positive MBC. MATERIALS AND METHODS: Surveillance, Epidemiology, and End Results Program data were used to identify women diagnosed 2010-2014 with MBC or invasive ductal carcinoma (IDC)...
January 12, 2018: Oncologist
https://www.readbyqxmd.com/read/29322287/metaplastic-breast-cancer-practice-patterns-outcomes-and-the-role-of-radiotherapy
#3
Waqar Haque, Vivek Verma, Nilan Naik, E Brian Butler, Bin S Teh
PURPOSE: Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. METHODS: The National Cancer Data Base was queried (2004-2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan-Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1-2N0 and pT3-4/N+ subcohorts...
January 10, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29322114/characteristics-of-special-type-breast-tumors-in-our-center
#4
Tonguç Utku Yılmaz, Levent Trabzonlu, Sertaç Ata Güler, Mehmet Ali Baran, Gökhan Pösteki, Cengiz Erçin, Zafer Utkan
Objective: Breast cancer is a heterogeneous disease with different histological types. Ductal breast cancer constitutes the vast majority of the breast cancers. However limited data are present in the rest of breast cancers called special or rare type breast cancers. Here in this study, we tried to describe the clinical features of special type breast cancers in our center. Materials and Methods: Retrospective descriptive study was performed in Kocaeli University School of Medicine, Department of General Surgery between January 2000 and January 2016...
January 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29312765/primary-breast-leiomyosarcoma-and-synchronous-homolateral-lung-cancer-a-case-report
#5
Alberto Testori, Stefano Meroni, Emanuele Voulaz, Marco Alloisio, Rita De Sanctis, Paola Bossi, Umberto Cariboni, Matilde De Simone, Ugo Cioffi
Radiological and histological features of breast leiomyosarcoma can mimic a wide variety of other breast lesions, such as mesenchymal tumors, breast lymphomas, poorly differentiated carcinomas and metaplastic breast carcinomas. The authors present the case of a 62-year-old woman with a primary breast leiomyosarcoma with synchronous ipsilateral lung adenocarcinoma. The latter was an incidental finding during pre-surgical staging examinations. Clinicopathological, immunophenotypic and imaging features cancer are described...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29305809/correction-to-tumour-suppressor-ep300-a-modulator-of-paclitaxel-resistance-and-stemness-is-downregulated-in-metaplastic-breast-cancer
#6
Muhammad Asaduzzaman, Stephanie Constantinou, Haoxiang Min, John Gallon, Meng-Lay Lin, Poonam Singh, Selina Raguz, Simak Ali, Sami Shousha, R Charles Coombes, Eric W-F Lam, Yunhui Hu, Ernesto Yagüe
In the original publication, Fig. 1 depicting the blot for EP300 in CAL51 cells (Fig. 1c) was unintentionally duplicated with that from MDA-MB-231 cells (Fig. 1d). The new figure given in this erratum depicts the correct EP300 blot in Fig. 1c.
January 5, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29302494/natural-history-of-metaplastic-squamous-cell-breast-cancer-a-case-report-and-literature-review-on-surgical-management
#7
Geok-Hoon Lim, Hannah Angela Acosta, Mihir Ananta Gudi
Metaplastic squamous cell breast cancer is an extremely rare subtype, accounting for less than 1% of all invasive breast cancers. As a result, there is sparse data in literature relating to its presentation and management. We report the first known case of metaplastic squamous cell breast cancer which was detected on screening mammogram and followed up as the patient delayed her treatment. This case highlights the aggressive natural behaviour of this subtype and importance of early treatment. The surgical management of this rare entity was reviewed...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29238749/a-feasibility-study-of-neoadjuvant-talazoparib-for-operable-breast-cancer-patients-with-a-germline-brca-mutation-demonstrates-marked-activity
#8
J K Litton, M Scoggins, D L Ramirez, R K Murthy, G J Whitman, K R Hess, B E Adrada, S L Moulder, C H Barcenas, V Valero, J Schwartz Gomez, E A Mittendorf, A Thompson, T Helgason, G B Mills, H Piwnica-Worms, B K Arun
This study was undertaken to determine the feasibility of enrolling breast cancer patients on a single-agent-targeted therapy trial before neoadjuvant chemotherapy. Specifically, we evaluated talazoparib in patients harboring a deleterious BRCA mutation (BRCA+). Patients with a germline BRCA mutation and ≥1 cm, HER2-negative primary tumors were eligible. Study participants underwent a pretreatment biopsy, 2 months of talazoparib, off-study core biopsy, anthracycline, and taxane-based chemotherapy ± carboplatin, followed by surgery...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/29214215/genomic-and-transcriptomic-heterogeneity-in-metaplastic-carcinomas-of-the-breast
#9
Salvatore Piscuoglio, Charlotte K Y Ng, Felipe C Geyer, Kathleen A Burke, Catherine F Cowell, Luciano G Martelotto, Rachael Natrajan, Tatiana Popova, Christopher A Maher, Raymond S Lim, Ino de Bruijn, Odette Mariani, Larry Norton, Anne Vincent-Salomon, Britta Weigelt, Jorge S Reis-Filho
Metaplastic breast cancer (MBC) is a rare special histologic type of triple-negative breast cancer, characterized by the presence of neoplastic cells showing differentiation towards squamous epithelium and/or mesenchymal elements. Here we sought to define whether histologically distinct subgroups of MBCs would be underpinned by distinct genomic and/or transcriptomic alterations. Microarray-based copy number profiling identified limited but significant differences between the distinct MBC subtypes studied here, despite the limited sample size (n = 17)...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/29206714/expression-of-ghrh-r-a-potentially-targetable-biomarker-in-triple-negative-breast-cancer
#10
Mahsa Khanlari, Andrew V Schally, Norman L Block, Mehrdad Nadji
PURPOSE: Growth hormone-releasing hormone (GHRH) has been shown to modify the growth behavior of many cancers, including breast. GHRH is produced by tumor cells, acts in an autocrine/paracrine manner, and requires the presence of GHRH receptor (GHRH-R) on the tumor cells to exert its effects. GHRH activity can be effectively blocked by synthetic antagonists of its receptor and hence, the expression of GHRH-R by tumor cells could serve as a predictor of response to GHRH-R antagonist therapy...
January 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29200695/metaplastic-carcinoma-of-breast-and-neurofibromatosis-1-a-rare-association
#11
Gnanapriya Vellaisamy, Suravi Mohanty, Pritilata Rout, Suraj Manjunath
Neurofibromatosis 1 (NF1) patients are generally at higher risk of developing common malignant tumors such as brain and soft tissue tumors. These patients are 5-fold increased the risk of developing breast cancer by the age of 50 years after that the risk remains the same. The most common reported cancer is infiltrating duct carcinoma. We report a case of 61-year-old female with NF1 presented with pain and breast lump for the past 2 months. On mammography, a retroareolar solid cystic lesion measuring 32 mm × 30 mm × 30 mm was noted which was definitive for malignancy...
July 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29145336/expression-of-hormone-receptors-in-low-grade-adenosquamous-carcinoma-of-the-breast-a-case-report
#12
Hai-Bo Wu, An-Li Zhang, Wei Wang, Heng Li
RATIONALE: Low-grade adenosquamous carcinoma (LGASC) is a rare subtype of metaplastic breast carcinoma which is generally recognized as a characteristic subgroup of triple-negative breast cancers previously. However, in this study, we reported for the first time a case of LGASC with hormone receptors expression. PATIENT CONCERNS: Pathological analysis of breast tumor specimen obtained by a 42-year-old female patient was performed. Morphologically, it composed of glandular structures with scattered squamous differentiation accompanied by haphazard arrangement of spindle cell stroma...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29139585/metaplastic-spindle-cell-carcinoma-of-the-breast-in-a-patient-with-neurofibromatosis-type-1
#13
Han Shin Lee, Eun Jung Jung, Ju Yeon Kim, Eun Jin Song, Chi Young Jeong, Young Tae Ju, Young Joon Lee, Soon Chan Hong, Bo Hwa Choi, Hyang Im Lee
We report a unique case of a 67-year-old woman with neurofibromatosis type 1, who was also diagnosed with metaplastic spindle cell carcinoma of the left breast. She had many neurofibromatosis lesions on her body, as well as the mass in the left breast. After the breast mass was diagnosed as a malignant mesenchymal tumor by core needle biopsy, the patient underwent left modified radical mastectomy. Subsequently, the pathological analysis of the tumor showed it to be a metaplastic spindle cell carcinoma. The co-occurrence of neurofibromatosis type 1 and breast cancer, in particular metaplastic spindle cell carcinoma, is very rare...
November 15, 2017: Breast Journal
https://www.readbyqxmd.com/read/29137351/microrna-200-associated-with-metastatic-breast-cancer-promotes-traits-of-mammary-luminal-progenitor-cells
#14
Lourdes Sánchez-Cid, Mònica Pons, Juan José Lozano, Nuria Rubio, Marta Guerra-Rebollo, Aroa Soriano, Laia Paris-Coderch, Miquel F Segura, Raquel Fueyo, Judit Arguimbau, Erika Zodda, Raquel Bermudo, Immaculada Alonso, Xavier Caparrós, Marta Cascante, Arash Rafii, Yibin Kang, Marian Martínez-Balbás, Stephen J Weiss, Jerónimo Blanco, Montserrat Muñoz, Pedro L Fernández, Timothy M Thomson
MicroRNAs are critical regulators of gene networks in normal and abnormal biological processes. Focusing on invasive ductal breast cancer (IDC), we have found dysregulated expression in tumor samples of several microRNAs, including the miR-200 family, along progression from primary tumors to distant metastases, further reflected in higher blood levels of miR-200b and miR-7 in IDC patients with regional or distant metastases relative to patients with primary node-negative tumors. Forced expression of miR-200s in MCF10CA1h mammary cells induced an enhanced epithelial program, aldehyde dehydrogenase (ALDH) activity, mammosphere growth and ability to form branched tubuloalveolar structures while promoting orthotopic tumor growth and lung colonization in vivo...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29035379/lobular-carcinoma-in-situ-and-invasive-lobular-breast-cancer-are-characterized-by-enhanced-expression-of-transcription-factor-ap-2%C3%AE
#15
Mieke Raap, Malte Gronewold, Henriette Christgen, Silke Glage, Mohammad Bentires-Alj, Shany Koren, Patrick W Derksen, Mirjam Boelens, Jos Jonkers, Ulrich Lehmann, Friedrich Feuerhake, Elna Kuehnle, Oleg Gluz, Ronald Kates, Ulrike Nitz, Nadia Harbeck, Hans H Kreipe, Matthias Christgen
Transcription factor AP-2β (TFAP2B) regulates embryonic organ development and is overexpressed in alveolar rhabdomyosarcoma, a rare childhood malignancy. Gene expression profiling has implicated AP-2β in breast cancer (BC). This study characterizes AP-2β expression in the mammary gland and in BC. AP-2β protein expression was assessed in the normal mammary gland epithelium, in various reactive, metaplastic and pre-invasive neoplastic lesions and in two clinical BC cohorts comprising >2000 patients. BCs from various genetically engineered mouse (GEM) models were also evaluated...
October 16, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29028085/nestin-and-cd146-expression-in-metaplastic-breast-cancer-stem-cell-therapy-in-need-lessons-reported-from-a-male-patient
#16
A Tampakis, E C Tampaki, D Trafalis, A Nonni, K Kontzoglou, E Patsouris, M Kontos, G Kouraklis
OBJECTIVE: Metaplastic breast carcinomas represent a rare subtype of breast cancer exhibiting aggressive clinical features. They appear as highly chemoresistant tumors, therefore showing poor outcome and high rates of local recurrence or distant metastasis. CASE REPORT: A 37-year-old greek man was referred to our hospital for evaluation of a locally advanced, ulcerated, fixed, irregular and hard in consistency mass covering his left breast and chest wall. Further work out with CT and biopsy of the tumor revealed a triple negative metaplastic breast cancer classified as cT4cN3cM1...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28943920/clinical-predictors-of-pathological-complete-response-to-neoadjuvant-chemotherapy-in-triple-negative-breast-cancer
#17
Ayako Nakashoji, Akira Matsui, Aiko Nagayama, Yuko Iwata, Manami Sasahara, Yuya Murata
The response of triple-negative breast cancer (TNBC) to chemotherapy is heterogeneous; particular subtype classifications based on mRNA gene expression analysis have been demonstrated to be associated with a pathological complete response (pCR). The aim of the present study was to investigate additional clinical and pathological characteristics associated with pCR status. The pathological and clinical characteristics of 40 TNBC patients who underwent neoadjuvant chemotherapy followed by surgery were retrospectively analyzed by dividing the cases into two groups according to the response to treatment: pCR (n=12) and non-pCR (n=28)...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28913760/impact-of-histopathology-tumor-infiltrating-lymphocytes-and-adjuvant-chemotherapy-on-prognosis-of-triple-negative-breast-cancer
#18
Roberto A Leon-Ferre, Mei-Yin Polley, Heshan Liu, Judith A Gilbert, Victoria Cafourek, David W Hillman, Ahmed Elkhanany, Margaret Akinhanmi, Jenna Lilyquist, Abigail Thomas, Vivian Negron, Judy C Boughey, Minetta C Liu, James N Ingle, Krishna R Kalari, Fergus J Couch, Daniel W Visscher, Matthew P Goetz
BACKGROUND: Given its high recurrence risk, guidelines recommend systemic therapy for most patients with early-stage triple-negative breast cancer (TNBC). While some clinicopathologic factors and tumor-infiltrating lymphocytes (TILs) are known to be prognostic in patients receiving chemotherapy, their prognostic implications in systemically untreated patients remain unknown. METHODS: From a cohort of 9982 women with surgically treated non-metastatic breast cancer, all patients with clinically reported ER-negative/borderline (≤10%) disease were selected for central assessment of ER/PR/HER2, histopathology, Ki-67, and TILs...
September 14, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28910875/-clinicopathologic-and-prognosis-features-of-claudin-low-breast-cancers
#19
J Xu, K T Lan, T H Su, Z F Li, Y Wan, Q Q Gu, P C Zou, X Zou
Objective: To investigate the clinicopathologic and prognostic features of Claudin-low breast cancers (CLBC). Methods: Tissue microarray sections were scored semiquantitatively for the immunohistochemical expression of claudin-1, -3, -4, -7 and -8 in 233 cases of invasive breast cancers collected from Qingdao Central Hospital from January 2010 to December 2011. Results: The expression rate of Claudin-3 (72/212, 33.9%) and -4 (56/212, 45.2%) was most similar, and Claudin-4 showed the highest expression. Twenty one cases (21/212, 9...
September 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28810292/-clinicopathologic-features-of-mammary-microglandular-adenosis-with-carcinoma-a-study-of-5-cases
#20
W Chen, C Wang, Z H Zhang, W M Zhang, Y Xu, G X Song
Objective: To study the clinicopathologic, immunohistochemical features, differential diagnoses and prognosis of mammary microglandular adenosis with carcinoma (MGACA) with micropapillary pattern. Methods: Five cases of MGACA were collected from 2010 to 2016 and reviewed for their clinical, histologic features and outcome.EnVision method were done for S-100 protein, cytokeratin (CK), p63, Calponin, smooth muscle myosin heavy chain (SMMHC), PR, ER and HER2. Results: Histologically, microglandular adenosis(MGA), atypical MGA (AMGA) and invasive carcinoma were seen in all five cases of MGACA...
August 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
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