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Dadmanesh F, Li X, Leong M, Maluf H, Balzer B. The Genetic Landscape of Fibroepithelial Lesions of the Breast. Adv Anat Pathol 2023; 30:415-420. [PMID: 37539688 DOI: 10.1097/pap.0000000000000407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Fibroepithelial lesions of the breast encompass a broad spectrum of lesions from fibroadenomas and their variants to phyllodes tumors, including their clinical range of benign, borderline, and malignant. Classification of this spectrum of neoplasms has historically and currently been based purely on morphology, although the nomenclature has shifted over the years largely due to the significant histologic overlap that exists primarily within the cellular fibroadenomas to borderline malignant phyllodes tumor categories. A review of the current diagnostic challenge, proposed ancillary studied and their value in prognostic significance, is provided. This article highlights the most recent molecular and genetic findings as well as the limitations of the studies, in the context of practical and available applications for the diagnostician and managerial implications for the clinician.
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Affiliation(s)
- Farnaz Dadmanesh
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA
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2
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Orguc S, Mavili S, Açar ÇR, Aydede H, Kandiloğlu AR. Contrast-enhanced spectral mammographic findings of phyllodes tumor of the breast. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2022. [PMCID: PMC9101982 DOI: 10.1186/s43055-022-00789-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background Phyllodes tumors of breast are rare fibroepithelial neoplasms. They have similar radiological findings with fibroadenomas. While fibroadenomas are benign lesions, phyllodes tumors may have malignant potential. Therefore, any imaging findings to differentiate fibroadenoma from phyllodes tumor are valuable. Case presentation A 51-year-old female patient was admitted to our clinic with the complaint of a palpable mass. Tru-Cut biopsy resulted as phyllodes tumor, and excision was recommended. However, the patient neglected herself during the COVID-19 pandemic, and 20 months later, she presented with a huge and complex mass. On CESM imaging, cystic areas and clefts were identified. The case was diagnosed as borderline phyllodes tumor. Conclusions Although MRI findings of phyllodes tumor are well known and reported many times, there is no information about CESM findings of this tumor in literature. Bubbly appearance on CESM is useful finding in the diagnosis of phyllodes tumor of breast.
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Mousa-Doust D, Dingee CK, Chen L, Bazzarelli A, Kuusk U, Pao JS, Warburton R, McKevitt EC. Excision of breast fibroepithelial lesions: when is it still necessary?-A 10-year review of a regional centre. Breast Cancer Res Treat 2022; 194:307-314. [PMID: 35639263 DOI: 10.1007/s10549-022-06631-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/09/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Fibroepithelial lesions (FEL) range from benign fibroadenoma (FA) to malignant phyllodes tumor (PT), but can be difficult to diagnose on core needle biopsy (CNB). This study assesses risk factors for phyllodes tumor (PT) and recurrence and whether a policy to excise FELs over 3 cm in size is justified. METHODS Patients having surgery for FELs from 2009 to 2018 were identified. The association of clinical, radiology and pathological features with PT and recurrence were evaluated. Trend analysis was used to assess risk of PT based on imaging size. RESULTS Of the 616 patients with FELs, 400 were identified as having FA on CNB and 216 were identified as having FEL with a comment of concern for phyllodes tumor (query PT, QPT). PT was identified in 107 cases; 28 had CNB of FA (7.0%), while 79 had QPT (36.6%). Follow-up was available for 86 with a mean of 56 months; six patients had recurrence of PT, all of whom had QPT on CNB. The finding of PT was associated with CNB of QPT, increasing age and size on multivariate logistic regression. All patients diagnosed with PT following CNB of FA had enlarging lesions with a mean size of 38.3 mm. CONCLUSIONS Our data does not support routine excision of FELs based on size alone. All patients with QPT on CNB, regardless of size should consider excision due to high risk of PT and recurrence, and the decision to excise FAs to rule out PT should also consider whether the lesion is enlarging.
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Affiliation(s)
- Dorsa Mousa-Doust
- Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Carol K Dingee
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC, V5T 3N4, Canada.,Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Leo Chen
- Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Amy Bazzarelli
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC, V5T 3N4, Canada.,Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Urve Kuusk
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC, V5T 3N4, Canada.,Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Jin-Si Pao
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC, V5T 3N4, Canada.,Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Rebecca Warburton
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC, V5T 3N4, Canada.,Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Elaine C McKevitt
- Providence Breast Centre, Mount Saint Joseph Hospital, 3080 Prince Edward Street, Vancouver, BC, V5T 3N4, Canada. .,Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada.
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Imaging Features of Rare Breast Lesions in Young Women. CURRENT HEALTH SCIENCES JOURNAL 2021; 47:314-321. [PMID: 34765255 PMCID: PMC8551907 DOI: 10.12865/chsj.47.02.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 06/26/2021] [Indexed: 11/18/2022]
Abstract
Rare breast tumors, such as, pseudoangiomatous stromal hyperplasia, granulomatous mastitis, tubular adenoma, myofibroblastoma and xanthogranulomatous mastitis, sarcomas, neuroendocrine tumors can sometimes be misdiagnosed because of the similarities in their imagistic characteristics. The main objective of our report is to emphasize the importance of performing ultrasound-guided breast biopsies of suspect lesions in young patients. We performed an US-guided breast biopsy instead of an excisional biopsy because breast surgery has a huge psychological impact. We selected 3 atypical breast tumors in young women, with different clinical signs and symptoms, some of which similar to other breast lesions, but with rapid growth, which needed a different and multiple imaging approach.
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Saxena P, Lalchandani A, Dausage C. Recurrent phyllodes tumour of breast infiltrating the latissimus dorsi reconstruction flap. BMJ Case Rep 2020; 13:13/12/e238306. [PMID: 33318256 PMCID: PMC7737035 DOI: 10.1136/bcr-2020-238306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Phyllodes tumour is a rare breast tumour with potential of malignancy. Recurrence in phyllodes tumour may also be suggestive of malignant transformation. We report a case of 29-year-old woman with recurrent phyllodes tumour infiltrating the latissimus dorsi reconstruction flap. Re-excision of the tumour along with excision of latissimus dorsi flap was done. Histopathology confirmed malignant phyllode tumour. A significantly higher incidence of recurrence is seen in phyllodes tumour of large size, tumours with infiltrative borders, increased mitotic activity, malignant histology and positive margins. Surgeons should always take into consideration the risk factors for recurrence before planning reconstructive breast surgery in recurrent phyllodes tumour. A preoperative MRI imaging and incisional biopsy are essential in planning surgery for these patients.
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Affiliation(s)
- Pradeep Saxena
- General Surgery, All India Institute of Medical Science—Bhopal, Bhopal, Madhya Pradesh, India
| | - Ankit Lalchandani
- General Surgery, All India Institute of Medical Science—Bhopal, Bhopal, Madhya Pradesh, India
| | - Chirag Dausage
- General Surgery, All India Institute of Medical Science—Bhopal, Bhopal, Madhya Pradesh, India
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6
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Wabik A, Van Bockstal MR, Berlière M, Galant C. Periductal Stromal Tumors and Phyllodes Tumors Represent a Spectrum of Fibroepithelial Lesions: What Is in a Name? Int J Surg Pathol 2020; 29:97-101. [PMID: 32517525 DOI: 10.1177/1066896920929086] [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: 11/17/2022]
Abstract
Periductal stromal tumors (PSTs) of the breast are considered as a rare subtype of phyllodes tumors. These rare fibroepithelial lesions display a biphasic morphology, characterized by a cellular stroma surrounding benign ducts. Unlike phyllodes tumors, they do not present with a leaflike architecture, rendering a biopsy diagnosis of a PST very challenging. In this report, we compare the histopathological features of a PST with those of a borderline phyllodes tumor. We discuss the differences and similarities between both entities, and we highlight the potential pitfalls of the respective biopsies. Both cases illustrate that PSTs and phyllodes tumors are part of the same spectrum. This biological spectrum implies that "hybrid" lesions do exist, which can be hard to classify.
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Affiliation(s)
- Amélie Wabik
- Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Mieke R Van Bockstal
- Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Université Catholique de Louvain, Brussels, Belgium
| | - Martine Berlière
- Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Université Catholique de Louvain, Brussels, Belgium
| | - Christine Galant
- Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Université Catholique de Louvain, Brussels, Belgium
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Ware AD, Argani P, Cimino-Mathews A. Accuracy and clinical implications of pre-operative breast core needle biopsy diagnoses of fibroepithelial neoplasms and sarcomatoid carcinomas. Breast Cancer Res Treat 2019; 178:51-56. [PMID: 31332664 DOI: 10.1007/s10549-019-05350-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 07/04/2019] [Indexed: 02/03/2023]
Abstract
PURPOSE Accurate classification of breast phyllodes tumors (PTs) on core biopsy can be challenging. The differential diagnosis of benign PT (BP) is fibroadenoma (FA), whereas the differential diagnosis of malignant PT (MP) is sarcomatoid (metaplastic) carcinoma (SC). METHODS Here, we compare the pre-excision core biopsy diagnosis and clinicopathologic features of histologically confirmed MP, borderline PT (BLP), BP, FA, and SC. Consecutive cases of 34 histologically confirmed PT (14 MP, 10 BLP, 10 BP), 13 SC, and 10 FA were identified. RESULTS A core biopsy diagnosis of SC was made only in SC (77%, p = 0.003). The diagnosis "malignant neoplasm" or "atypical spindle cell neoplasm" was made in 100% MP and 23% SC, but no other tumor (p = 0.0001). The diagnosis "phyllodes tumor" was made only in PT (44% BLP, 11% BP, p = 0.06). The diagnosis "fibroepithelial lesion" was made in 44% BLP, 67% BP, and 29% FA. The diagnosis "FA" was made most commonly in FA (57%) (versus 22% BP and no other tumor; p = 0.002). Neoadjuvant therapy was given only in SC (23%, p = 0.03); adjuvant therapy was given in 46% SC and 13% MP (p = 0.04). CONCLUSIONS A pre-operative core biopsy diagnosis of "malignant spindle cell neoplasm" separates MP and SC from BLP, BP, and FA. However, MP and SC can have overlapping features on core biopsy. Thus, one must be careful not to overcall SC on core biopsy, as patients diagnosed with SC may receive neoadjuvant therapy. A core biopsy diagnosis of "phyllodes tumor" is specific for PT and can guide treatment planning of a wide local excision.
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Affiliation(s)
- Alisha D Ware
- The Department of Pathology, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Pedram Argani
- The Departments of Pathology and Oncology, The Johns Hopkins Hospital, 401 N. Broadway St, Weinberg 2242, Baltimore, MD, 21287, USA
| | - Ashley Cimino-Mathews
- The Departments of Pathology and Oncology, The Johns Hopkins Hospital, 401 N. Broadway St, Weinberg 2242, Baltimore, MD, 21287, USA.
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Iris F, Beopoulos A, Gea M. How scientific literature analysis yields innovative therapeutic hypothesis through integrative iterations. Curr Opin Pharmacol 2018; 42:62-70. [PMID: 30092386 DOI: 10.1016/j.coph.2018.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/12/2018] [Indexed: 12/27/2022]
Abstract
It is becoming generally accepted that the current diagnostic system often guarantees, rather than diminishes, disease heterogeneity. In effects, syndrome-dominated conceptual thinking has become a barrier to understanding the biological causes of complex, multifactorial diseases characterized by clinical and therapeutic heterogeneity. Furthermore, not only is the flood of currently available medical and biological information highly heterogeneous, it is also often conflicting. Together with the entire absence of functional models of pathogenesis and pathological evolution of complex diseases, this leads to a situation where illness activity cannot be coherently approached and where therapeutic developments become highly problematic. Acquisition of the necessary knowledge can be obtained, in parts, using in silico models produced through analytical approaches and processes collectively known as `Systems Biology'. However, without analytical approaches that specifically incorporate the facts that all that is called `information' is not necessarily useful nor utilisable and that all information should be considered as a priori suspect, modelling attempts will fail because of the much too numerous conflicting and, although correct in molecular terms, physiologically invalid reports. In the present essay, we suggest means whereby this body of problems could be functionally attacked and describe new analytical approaches that have demonstrated their efficacy in alleviating these difficulties.
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Affiliation(s)
- Francois Iris
- Bio-Modeling Systems, Tour CIT, 3 Rue de l'Arrivée, 75015, Paris, France.
| | | | - Manuel Gea
- Bio-Modeling Systems, Tour CIT, 3 Rue de l'Arrivée, 75015, Paris, France
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Albalawi IA. A huge phyllodes tumor in the breast: a case report. Electron Physician 2018; 10:6951-6955. [PMID: 30034663 PMCID: PMC6049979 DOI: 10.19082/6951] [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: 04/15/2018] [Accepted: 05/23/2018] [Indexed: 12/03/2022] Open
Abstract
Phyllodes tumor is a benign breast cancer with a malignant potential. It is very rare in Saudi Arabia and also rare around the world. Malignant phyllodes tumors originate from the connective tissue of the breast, so they are histologically sarcomas. We report the largest phyllodes tumor ever seen in Saudi Arabia, a 41-year-old female who presented with a huge breast mass occupying the whole breast with areas of ulceration. Her history had started 14 months previously with a slowly growing left breast swelling, ultimately the lump ulcerated and became necrotic. Mastectomy with partial resection of the pectoral muscles was done. The tumor specimen measured exactly 30×20×13 cm in size, and weight of 5.4 kg, and with the closest margin of resection 0.5 cm away from the tumor the histopathology report came back as malignant phyllodes tumor. The patient was sent for radiotherapy and chemotherapy. We concluded that accurate preoperative pathological diagnosis is very important for management of phyllodes tumor, and allows correct surgical planning and avoidance of reoperation.
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Affiliation(s)
- Ibrahim Altedlawi Albalawi
- Associate Professor of Surgical Oncology, Department of Surgery, Faculty of Medicine, University of Tabuk, Saudi Arabia
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10
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Abstract
OBJECTIVE The purpose of this study is to evaluate the sonographic and histopathologic features distinguishing benign from borderline and malignant phyllodes tumors. MATERIALS AND METHODS The ultrasound examinations of women with pathologically proven phyllodes tumors from 2004 to 2011 were retrospectively reviewed. The sonographic features of benign, borderline, and malignant phyllodes tumors were compared and analyzed using the American College of Radiology's BI-RADS ultrasound lexicon. Fisher exact test and Wilcoxon rank sum test were used for statistical analysis. RESULTS Fifty-nine women were included in the study; 28 benign (47%), 19 malignant (32%), and 12 borderline (20%) phyllodes tumors were identified. Significant univariate predictors of increased risk of borderline or malignant phyllodes tumors were patient age greater than 55 years (p = 0.014), irregular lesion shape (p = 0.011), and longest lesion dimension greater than 7 cm (p = 0.0022) at sonography. No significant differences were observed in lesion margins, boundaries, echo patterns, or posterior acoustic features. CONCLUSION There is substantial overlap in the sonographic features of benign and borderline or malignant phyllodes tumors. Understanding the clinical and sonographic features of phyllodes tumors may aid the radiologist in predicting biological behavior, including the likelihood of benign versus borderline or malignant phyllodes tumors at pathologic analysis.
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12
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Zhou ZR, Wang CC, Sun XJ, Yang ZZ, Yu XL, Guo XM. Diagnostic performance of core needle biopsy in identifying breast phyllodes tumors. J Thorac Dis 2016; 8:3139-3151. [PMID: 28066593 DOI: 10.21037/jtd.2016.10.109] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND A retrospective analysis of diagnoses was performed in patients with phyllodes tumors of the breast (PTB) who received preoperative core needle biopsy (CNB) and had breast surgery at Fudan University Shanghai Cancer Center from January 1, 2002 to April 1, 2013. The resulting data allowed us to compare the accordance between CNB and excision diagnoses of PTB patients and evaluate the accuracy of CNB in preoperative diagnosis. METHODS Data from 128 patients with PTB who had undergone preoperative CNB and breast surgery were retrospectively analyzed. We reviewed the medical history, clinical follow-up data, and CNB diagnostic data. A diagnostic test was used to evaluate the sensitivity and specificity of CNB in diagnosing benign, borderline, and malignant phyllodes tumors. RESULTS The accuracy of CNB for diagnosing PTB was 13.3% (17/128). Of the remaining patients, 98 (75.5% of the PTB patients) were diagnosed with fibroadenoma or fibroepithelial lesions. The sensitivity of CNB at diagnosing benign, borderline, and malignant phyllodes tumors were 4.9% (2/41), 4.2% (3/71), and 25.0% (4/16), respectively, whereas the corresponding specificity were 92.0%, 98.2%, and 100%, respectively. Some clinical features, such as large tumor size, rapid growth, or surgical history of fibroadenomas, were indicative of an increased possibility of PTB. CONCLUSIONS CNB provides a pathological basis for the preoperative diagnosis of PTB, but it has a poor accuracy and offers limited guidance for surgical decisions. Considering CNB along with multiple histologic features may improve the ability to accurately diagnose PTB. An integrated assessment using CNBs in combination with clinical data and imaging features is suggested as a reliable strategy to assist PTB diagnosis.
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Affiliation(s)
- Zhi-Rui Zhou
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China;; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Chen-Chen Wang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China;; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Xiang-Jie Sun
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China;; Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Zhao-Zhi Yang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China;; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Xiao-Li Yu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China;; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Xiao-Mao Guo
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China;; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Kapoor A, Charan I, Singhal M, Kumar H. Borderline phyllodes tumor of breast in a premenarchal girl: A relatively common tumor at an uncommon age. INTERNATIONAL JOURNAL OF CANCER THERAPY AND ONCOLOGY 2016. [DOI: 10.14319/ijcto.42.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Tan WJ, Cima I, Choudhury Y, Wei X, Lim JCT, Thike AA, Tan MH, Tan PH. A five-gene reverse transcription-PCR assay for pre-operative classification of breast fibroepithelial lesions. Breast Cancer Res 2016; 18:31. [PMID: 26961242 PMCID: PMC4784364 DOI: 10.1186/s13058-016-0692-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 02/25/2016] [Indexed: 11/30/2022] Open
Abstract
Background Breast fibroepithelial lesions are biphasic tumors and include fibroadenomas and phyllodes tumors. Preoperative distinction between fibroadenomas and phyllodes tumors is pivotal to clinical management. Fibroadenomas are clinically benign while phyllodes tumors are more unpredictable in biological behavior, with potential for recurrence. Differentiating the tumors may be challenging when they have overlapping clinical and histological features especially on core biopsies. Current molecular and immunohistochemical techniques have a limited role in the diagnosis of breast fibroepithelial lesions. We aimed to develop a practical molecular test to aid in distinguishing fibroadenomas from phyllodes tumors in the pre-operative setting. Methods We profiled the transcriptome of a training set of 48 formalin-fixed, paraffin-embedded fibroadenomas and phyllodes tumors and further designed 43 quantitative polymerase chain reaction (qPCR) assays to verify differentially expressed genes. Using machine learning to build predictive regression models, we selected a five-gene transcript set (ABCA8, APOD, CCL19, FN1, and PRAME) to discriminate between fibroadenomas and phyllodes tumors. We validated our assay in an independent cohort of 230 core biopsies obtained pre-operatively. Results Overall, the assay accurately classified 92.6 % of the samples (AUC = 0.948, 95 % CI 0.913–0.983, p = 2.51E-19), with a sensitivity of 82.9 % and specificity of 94.7 %. Conclusions We provide a robust assay for classifying breast fibroepithelial lesions into fibroadenomas and phyllodes tumors, which could be a valuable tool in assisting pathologists in differential diagnosis of breast fibroepithelial lesions. Electronic supplementary material The online version of this article (doi:10.1186/s13058-016-0692-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wai Jin Tan
- Division of Biodevices and Diagnostics, Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, #04-01, Singapore, 138669, Republic of Singapore.
| | - Igor Cima
- Division of Biodevices and Diagnostics, Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, #04-01, Singapore, 138669, Republic of Singapore.
| | - Yukti Choudhury
- Division of Biodevices and Diagnostics, Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, #04-01, Singapore, 138669, Republic of Singapore.
| | - Xiaona Wei
- Division of Biodevices and Diagnostics, Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, #04-01, Singapore, 138669, Republic of Singapore.
| | - Jeffrey Chun Tatt Lim
- Department of Pathology, Singapore General Hospital, 20 College Road, Academia, Level 7, Diagnostics Tower, Singapore, 169856, Republic of Singapore.
| | - Aye Aye Thike
- Department of Pathology, Singapore General Hospital, 20 College Road, Academia, Level 7, Diagnostics Tower, Singapore, 169856, Republic of Singapore.
| | - Min-Han Tan
- Division of Biodevices and Diagnostics, Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, #04-01, Singapore, 138669, Republic of Singapore.
| | - Puay Hoon Tan
- Department of Pathology, Singapore General Hospital, 20 College Road, Academia, Level 7, Diagnostics Tower, Singapore, 169856, Republic of Singapore. .,Duke-NUS Graduate Medical School, 8 College Road, Singapore, 169857, Republic of Singapore.
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Edwards T, Jaffer S, Szabo JR, Sonnenblick EB, Margolies LR. Cellular fibroadenoma on Core needle biopsy: management recommendations for the radiologist. Clin Imaging 2016; 40:587-90. [PMID: 27317201 DOI: 10.1016/j.clinimag.2016.02.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 01/31/2016] [Accepted: 02/11/2016] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Cellular fibroadenomas (CFA) are difficult to distinguish from phyllodes tumor (PT) at biopsy. This study's purpose was to determine what CFA characteristics were associated with recommendations to follow-up or excise and if the current algorithm was correct. MATERIALS AND METHODS Databases from 2002 to 2014 were reviewed. Mass characteristics and post biopsy recommendations were recorded. RESULTS 81 CFAs were diagnosed; 19 cellular and 62 with slightly cellular stroma. 21 masses were surgically excised with 2 PTs diagnosed. CONCLUSION Larger mass size and increased histologic cellularity were associated with excision recommendation, but only clinical growth was associated with PT.
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Affiliation(s)
- Teresa Edwards
- Department of Radiology, Icahn School of Medicine at Mount Sinai
| | - Shabnam Jaffer
- Department of Pathology, Icahn School of Medicine at Mount Sinai
| | - Janet R Szabo
- Department of Radiology, Icahn School of Medicine at Mount Sinai
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Farshid G, Gill PG. Phyllodes tumour among participants in screening mammography. ANZ J Surg 2015; 87:E285-E292. [PMID: 25786884 DOI: 10.1111/ans.13056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND In screening, the distinction between phyllodes tumour (PT) and fibroadenoma (FA) is imprecise, often needing surgery. METHODS In this retrospective cohort study and literature review, we wished to (i) present our experience with PT diagnosed among screening participants; (ii) identify discriminating features between FA and PT; (iii) assess the efficacy of cancer screening in identifying PT; and (iv) for women diagnosed with PT, determine appropriate breast cancer screening schedules. RESULTS During a 23.7 years time frame, PT was diagnosed in 30 women, reflecting an incidence of 2.53 per 100 000 women screened. Only 22 (73.3%) PT were found by screening. The remaining eight (26.7%) presented as interval tumours. Thirteen PT were benign, eight borderline and nine malignant. Six of eight (75%) malignant PT were symptomatic. A circumscribed mass, mean diameter 34.7 mm, was the dominant finding. Enlargement (14 imaging, seven clinical) was documented in 21 (70%) cases. Diagnostic open biopsy was required in 67.9%. Follow-up of at least 12 months is available in 20 cases. Only two developed recurrence. One woman died of metastatic PT and one PT recurred locally. CONCLUSION The extreme rarity of PT in screening contrasts with the prevalence of FAs. The peak incidence of PT in women is 40-50, whereas screening is targeted at women 50-74. Two yearly screening mammography is not designed to detect PT reliably. In particular, malignant PT grows rapidly and becomes symptomatic. Women with benign PT can continue with screening. Women with borderline and malignant PT should resume screening after 5 years of specialist surveillance.
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Affiliation(s)
- Gelareh Farshid
- Clinical Services, BreastScreen SA, Wayville, South Australia, Australia.,Surgical Pathology, SA Pathology, Adelaide, South Australia, Australia.,School of Medicine, Adelaide University, Adelaide, South Australia, Australia
| | - P Grantley Gill
- Clinical Services, BreastScreen SA, Wayville, South Australia, Australia.,Breast, Endocrine and Surgical Oncology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
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Heller DR, Rohde C, Ananthakrishnan P. Staging resection and reconstruction with temporary wound VAC coverage in a case of giant cystosarcoma phyllodes of the breast. Int J Surg Case Rep 2014; 6C:84-7. [PMID: 25528032 PMCID: PMC4334635 DOI: 10.1016/j.ijscr.2014.12.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/16/2014] [Accepted: 12/06/2014] [Indexed: 12/05/2022] Open
Abstract
We report a rare case of malignant cystosarcoma phyllodes invading the chest wall. The patient presented with systemic toxicity and hematologic/electrolyte disarray. Surgical resection and reconstruction were staged with temporary wound VAC coverage. Definitive histopathologic tumor margins were assessed between procedures. Adjuvant medical/radiotherapy were administered resulting in long-term remission.
Introduction Cystosarcoma phyllodes (CP) is a rare breast tumor occurring most often in females in their fifth decade. While usually benign, some CP tumors exhibit aggressive growth patterns and extensively invade chest wall structures; resecting these tumors to negative surgical margins can be challenging. We present a case of malignant CP involving the chest wall where using a negative pressure vacuum-assisted closure (VAC) system after resection enabled complete histopathologic margin assessment prior to reconstruction. This is the first known report of staged breast tumor resection and reconstruction with interim VAC coverage. Case presentation A 48 year-old woman presented with rapidly increasing left breast size, fevers, and fatigue. On examination, the left breast was massively enlarged with engorged vessels and skin necrosis. Lab analyses revealed unusual metabolic abnormalities requiring preoperative hospitalization. We performed a left modified radical mastectomy with partial resection of pectoralis major and minor muscles, temporarily sealing the wound with a VAC due to concern for deeper tumor extension that could require further resection. Pathology revealed malignant CP with a negative deep margin. The 38 cm defect was then repaired with latissimus myocutaneous flap plus skin graft. At three-year follow up the patient remains free of disease. Conclusion In cases of malignant CP involving the chest wall, minimizing the extent of chest wall resection is critical for reducing morbidity, while completely clearing tumor margins is essential for reducing recurrence risk. Using temporary wound VAC coverage enables cautious debulking followed by histopathologic margin assessment prior to definitively reconstructing the breast.
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Affiliation(s)
- D R Heller
- College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY 10032, USA.
| | - C Rohde
- Plastic Surgery Section, Columbia University Medical Center, New York, NY, USA.
| | - P Ananthakrishnan
- Breast Surgery Section, Columbia University Medical Center, New York, NY, USA.
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Yasir S, Gamez R, Jenkins S, Visscher DW, Nassar A. Significant histologic features differentiating cellular fibroadenoma from phyllodes tumor on core needle biopsy specimens. Am J Clin Pathol 2014; 142:362-9. [PMID: 25125627 DOI: 10.1309/ajcpzuz96resgpup] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVES Cellular fibroepithelial lesions (CFELs) are a heterogeneous group of tumors encompassing cellular fibroadenoma (CFA) and phyllodes tumor (PT). Distinction between the two is challenging on core needle biopsy (CNB) specimens. The objective of this study was to evaluate histologic features that can help distinguish PT from CFA on CNB specimens. METHODS Records of all patients diagnosed with CFELs on CNB specimens with follow-up excision between January 2002 and December 2012 were retrieved. Histopathologic stromal features were evaluated on CNB specimens, including mitoses per 10 high-power fields (hpf), overgrowth, increased cellularity, fragmentation, adipose tissue infiltration, heterogeneity, subepithelial condensation, and nuclear pleomorphism. RESULTS Twenty-seven (42.2%) of 64 were diagnosed as PT (24 benign PTs and three borderline PTs) and 37 (57.8%) as CFA on excision. All features except for increased stromal cellularity were statistically significant. The average number of histologic features seen in PT and CFA was 3.9 and 1.4, respectively (odds ratio [OR], 7.27; 95% confidence interval [CI], 2.44-21.69; P = .0004). The average number of mitoses per 10 hpf was 3.0 for PT compared with 0.8 for CFA (OR, 2.14; 95% CI, 1.18-3.86; P = .01). CONCLUSIONS The presence of mitoses (three or more) and/or total histologic features of three or more on CNB specimens were the most helpful features in predicting PT on excision.
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Affiliation(s)
- Saba Yasir
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Roberto Gamez
- Department of Pathology and Laboratory Medicine, Loyola University, Chicago, IL
| | - Sarah Jenkins
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Daniel W. Visscher
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Aziza Nassar
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL
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Yang X, Kandil D, Cosar EF, Khan A. Fibroepithelial tumors of the breast: pathologic and immunohistochemical features and molecular mechanisms. Arch Pathol Lab Med 2014; 138:25-36. [PMID: 24377809 DOI: 10.5858/arpa.2012-0443-ra] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT The 2 main prototypes of fibroepithelial tumors of the breast include fibroadenoma and phyllodes tumor (PT). Although both tumors share some overlapping histologic features, there are significant differences in their clinical behavior and management. Phyllodes tumors have been further divided into clinically relevant subtypes, and there is more than one classification scheme for PT currently in use, suggesting a lack of consistency within different practices. Accurate differentiation between fibroadenoma and PT, as well as the grading of PT, may sometimes be challenging on preoperative core needle biopsy. Some immunohistochemical markers have been suggested to aid in the pathologic classification of these lesions. OBJECTIVE To discuss the salient histopathologic features of fibroepithelial tumors and review the molecular pathways proposed for the initiation, progression, and metastasis of PTs. Also, to provide an update on immunohistochemical markers that may be useful in their differential diagnosis and outline the practice and experience at our institution from a pathologic perspective. DATA SOURCES Sources included published articles from peer-reviewed journals in PubMed (US National Library of Medicine). CONCLUSIONS Fibroepithelial tumor of the breast is a heterogenous group of lesions ranging from fibroadenoma at the benign end of the spectrum to malignant PT. There are overlapping histologic features among various subtypes, and transformation and progression to a more malignant phenotype may also occur. Given the significant clinical differences within various subtypes, accurate pathologic classification is important for appropriate management. Although some immunohistochemical markers may be useful in this differential diagnosis, histomorphology still remains the gold standard.
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Affiliation(s)
- Xiaofang Yang
- From the Department of Pathology, University of Massachusetts Medical School and UMass Memorial Medical Center, Worcester
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Prakash S, Raj P. A very large malignant phyllodes tumor with skin ulceration and nipple areola complex involvement-still a reality!!! Indian J Surg 2012; 75:39-42. [PMID: 24426382 DOI: 10.1007/s12262-012-0499-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 04/05/2012] [Indexed: 11/29/2022] Open
Abstract
Cystosarcoma phyllodes is an uncommon neoplasm of the breast, constituting 0.3-0.9 % of all breast tumors. The incidence of malignant phyllodes tumor is even lower. The tumor is similar to fibroadenoma in structure, but it is distinguished from it histologically by large leaf-like projections of stroma with increased stromal cellularity (Dyer et al. Br J Surg 53:450-455, 1966). Although surgical removal is the mainstay of treatment, the extent of surgery required (excision vs. mastectomy) and the need for additional local therapy, such as radiotherapy, are unclear (Chaney et al. Cancer 89(7):1502-1511, 2000). We report a case of a 52-year-old married woman who presented to our outpatient department with 45 × 35 × 20 cm ulcerative, foul-smelling, huge right breast mass weighing 12 kg, and involving nipple areola complex, which turned out to be a malignant phyllodes tumor. The malignant variant of phyllodes tumor is indeed a very rare mammary tumor.
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Affiliation(s)
- Shwetank Prakash
- Department of Surgery, Sarojini Naidu Medical College, Agra, India
| | - Prince Raj
- Department of Surgery, Sarojini Naidu Medical College, Agra, India
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Jales RM, Sarian LO, Peralta CFA, Torresan R, Marussi EF, Alvares BR, Derchain S. Complex breast masses: assessment of malignant potential based on cyst diameter. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2012; 31:581-587. [PMID: 22441915 DOI: 10.7863/jum.2012.31.4.581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVES The purpose of this study was to assess whether cyst diameter might contribute to the prediction of malignancy in complex breast masses. METHODS In this cross-sectional study, we identified 48 breast masses that had sonographic features suggestive of benign breast lesions (oval shape, circumscribed margins, parallel axis, and abrupt limits). However, these masses were classified as Breast Imaging Reporting and Data System (BI-RADS) category 4 because of the presence of at least 1 cyst (complex echogenicity). All breast masses were biopsied (25 core needle and 23 core needle and excision). Subsequent histologic analysis was performed, and 12 malignancies (25%) were identified. Mammographic features were reviewed. Different sonographic measurements (largest diameters of the mass and cyst and vascular pattern) were assessed for the detection of malignancy. RESULTS Among the sonographic features, the vascular pattern, ie, the detection of blood flow (present in the lesion [P >.99] or present immediately adjacent to the lesion [P = .46]), was not associated with malignancy, whereas the largest mass and cyst dimensions had significantly positive correlations (P = .02; P < .001, respectively) with tumor malignancy. In receiver operating characteristic curve analysis, the point with the highest sum of sensitivity and specificity corresponded to a maximum cyst diameter of 8 mm (sensitivity, 67%; specificity, 86%). The positive and negative predictive values at that cutoff point were 61% and 86%, respectively. The area under the curve was 0.772. In this study, all masses with cysts smaller than 3 mm in diameter (7 cases) were benign, and all masses with cysts larger than 13 mm in diameter (4 cases) were malignant. CONCLUSIONS Cyst diameter is a good predictor of malignancy in complex breast masses, which, except for the presence of internal cysts, would be otherwise classified as BI-RADS category 3.
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Affiliation(s)
- Rodrigo Menezes Jales
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, State University of Campinas-Unicamp, PO Box 6111, Campinas, 13083-970 São Paulo-SP, Brazil.
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Ward S, Jewkes A, Jones B, Chaudhri S, Hejmadi R, Ismail T, Hallissey M. The sensitivity of needle core biopsy in combination with other investigations for the diagnosis of phyllodes tumours of the breast. Int J Surg 2012; 10:527-31. [DOI: 10.1016/j.ijsu.2012.08.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 08/02/2012] [Accepted: 08/06/2012] [Indexed: 10/28/2022]
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Choi J, Koo JS. Comparative study of histological features between core needle biopsy and surgical excision in phyllodes tumor. Pathol Int 2011; 62:120-6. [DOI: 10.1111/j.1440-1827.2011.02761.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Phyllodes tumors: race-related differences. J Am Coll Surg 2011; 213:537-42. [PMID: 21856184 DOI: 10.1016/j.jamcollsurg.2011.07.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 07/15/2011] [Accepted: 07/15/2011] [Indexed: 11/21/2022]
Abstract
BACKGROUND Phyllodes tumors (PT) are rare breast malignancies accounting for 0.5% to 1% of all breast tumors. PT have unpredictable behavior, with recurrence rates as high as 40%. A dearth of information exists about racial differences; elucidation of these differences is the objective of this study. STUDY DESIGN A retrospective review of patients treated for PT at either Moffitt Cancer Center or University of Texas Health Science Center San Antonio from 1999 to 2010. RESULTS Of the 124 patients, 71 (57%) were treated at Moffitt Cancer Center and 53 (42%) at University of Texas Health Science Center San Antonio. Mean age at diagnosis was 44 years (15 to 70 years). Thirty-three patients required mastectomy. Combining both cohorts, 42% of the patients were Caucasian, 43% were Hispanic, and 12% were black. Tumors were benign in 49% patients, borderline in 35%, and malignant in 16%, with a higher percentage of borderline and malignant tumors in Hispanic patients (p < 0.01). Hispanic patients tended to have larger tumors and higher mitotic rates (p = 0.01; p = 0.03). At a median follow-up time of 13 months, the local recurrence rate (6.4%) was associated with tumor size, tumor grade, mitotic rate, and close margin status (<2 mm) (p <0.01; p = 0.01; p = 0.01; p = 0.04). However, these findings did not translate into a survival difference by race. CONCLUSIONS In this multi-institutional review of PT we found substantial pathologic differences by race with higher-grade tumors present more often in Hispanic patients. These differences did not substantially affect outcomes at short-term follow-up. Further investigation into additional molecular, biologic factors, geographic impact, and socioeconomic factors is needed to more clearly delineate this finding.
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Resetkova E, Khazai L, Albarracin CT, Arribas E. Clinical and radiologic data and core needle biopsy findings should dictate management of cellular fibroepithelial tumors of the breast. Breast J 2011; 16:573-80. [PMID: 21070433 DOI: 10.1111/j.1524-4741.2010.01013.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fibroepithelial lesions with cellular stroma identified on core needle biopsy (CNB) may prove to be either fibroadenoma or phyllodes tumor at excision; therefore, management of these rare lesions is highly controversial. We aim to assess the management and the outcome of 101 cellular fibroepithelial lesions diagnosed on CNB over a 6-year period in one institution. Consensus on clinical management in each individual patient was reached during multi-disciplinary conferences, based on careful correlation of clinical data with results of imaging studies and pathology of CNB samples. Radiologic findings (mammogram and sonogram) and multiple histologic parameters on CNB specimen were blindly re-evaluated by one experienced breast radiologist and two breast pathologists, respectively, and results were correlated with final diagnosis at excision. Cellular fibroepithelial lesions with indeterminate or suspect imaging findings, with larger size, and with an equivocal comment such as "cannot rule out phyllodes tumor" in the pathology report were excised more frequently (p = 0.05, p = 0.034, and p = 0.01, respectively). Of 43 excised lesions, 13 were classified as benign phyllodes tumors, 23 as fibroadenoma and seven as benign cellular fibroepithelial lesion. The final diagnosis at excision did not significantly correlate with any clinical data, or with retrospective evaluation of imaging findings or comprehensive evaluation of multiple histologic parameters. In 58 patients who had clinical and radiologic follow-up (mean ± SD: 30 ± 21 months) there was no evidence of disease progression. No clinical and radiologic findings and/or comprehensive evaluation of multiple histologic parameters on CNB specimen are distinctive enough to predict final classification of equivocal cellular fibroepithelial lesions. However, careful clinico-pathologic and radiologic correlation may help to select the most clinically significant lesions for proper immediate surgical management. Follow-up alone may be an appropriate alternative for a subset of patients, given a good clinical, pathologic, and radiologic correlation.
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Affiliation(s)
- Erika Resetkova
- Department of Pathology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, USA.
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Tan H, Zhang S, Liu H, Peng W, Li R, Gu Y, Wang X, Mao J, Shen X. Imaging findings in phyllodes tumors of the breast. Eur J Radiol 2011; 81:e62-9. [PMID: 21353414 DOI: 10.1016/j.ejrad.2011.01.085] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2010] [Accepted: 01/21/2011] [Indexed: 10/18/2022]
Abstract
PURPOSE To study the radiological appearance and pathological features of breast phyllodes tumors (PTs), and to enhance the recognition of the tumor. MATERIALS AND METHODS Clinical and imaging findings were retrospectively reviewed in 24 women with PTs confirmed by surgical pathology. All of the 24 patients had preoperative MRI and sonography, and 10 had preoperative mammography. RESULTS The histologic findings were benign, borderline and malignant PTs in 16.7% (4/24), 45.8% (11/24) and 37.5% (9/24) of cases, respectively. The tumor size (p=0.001), irregular shape on sonographic imaging (p=0.039), internal non-enhanced septations (p=0.009), silt-like changes in enhanced images (p=0.006) and signal changes from T2-weighted to enhanced images on MRI (p=0.001) correlated significantly with the histologic grade; the BI-RADS category of the MRI could reflect the PT's histologic grade with a correlation coefficient of 0.440 (p=0.031). If the category BI-RADS ≥4a was considered to be a suspicious malignant lesion, the diagnostic accuracy of mammography, US and MRI would be 70% (7/10), 62.5% (15/24) and 95.8% (23/24), respectively. CONCLUSION The tumor size and several US and MRI findings can be used to help preoperatively determine the histologic grade of breast PTs. When a patient presents with a progressively enlarging, painless breast mass, MRI should be recommended first.
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Affiliation(s)
- Hongna Tan
- Department of Radiology, Cancer Hospital/Institute & Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, PR China
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Destounis SV, Vogt C, Arieno AL, Morgan RC. Difficult management of a rapidly growing benign phyllodes tumor in a 49-year-old woman. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2010; 29:1125-1131. [PMID: 20587436 DOI: 10.7863/jum.2010.29.7.1125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Giri D. Recurrent challenges in the evaluation of fibroepithelial lesions. Arch Pathol Lab Med 2009; 133:713-21. [PMID: 19415945 DOI: 10.5858/133.5.713] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2009] [Indexed: 11/06/2022]
Abstract
CONTEXT The morphologic spectrum of mammary fibroepithelial lesions ranges from fibroadenoma, a common benign neoplasm, to phyllodes tumor, an uncommon lesion that can sometimes recur and metastasize. OBJECTIVE To focus on problems encountered in the diagnostic evaluation of fibroepithelial tumors, highlighting the diagnostically relevant morphologic features and providing an update on the immunohistochemical profile and genetic alterations of these rare neoplasms. DATA SOURCES A PubMed search of the English-language literature identified published reports on fibroepithelial lesions, with a special focus on phyllodes tumor. The results and conclusions of these studies form the basis of this review. CONCLUSIONS The distinction between fibroadenoma and phyllodes tumor is usually not problematic, especially in excision specimens. In some cases, however, the diagnostic evaluation of fibroepithelial lesions can be challenging, especially if only limited material is available. Morphologic predictors of local recurrence of phyllodes tumor include cellularity and cytologic atypia, mitotic activity, positive margins, infiltrative borders, fibroproliferative satellite nodules, and past history of fibroadenoma. Predictors of distant metastasis include size, tumor necrosis, and stromal overgrowth. None of these parameters, however, constitutes a definite marker of malignancy. Presently, molecular and immunohistochemical techniques play a limited role in the diagnosis of fibroepithelial lesions.
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Affiliation(s)
- Dilip Giri
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
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