Surgical Pathology Criteria Breast MRI during pregnancy and lactation: clinical challenges and technical advances. Complex fibroadenomas are smaller and appear at an older age. A simple fibroadenoma does not raise your risk for breast cancer. doi: 10.7759/cureus.12611. They fall under the broad group of "adenomatous breast lesions".. Complex fibroadenomas are often smaller than simple fibroadenomas (1.3 cm compared with 2.5 cm in simple fibroadenomas). FOIA ; Cha, I.; Bauermeister, DE. Chapter 5 looks at special problems in breast cancer including bilateral breast cancer, cancer of the male breast, the unknown primary presenting with axillary lymphadenopathy, Paget's disease of the nipple-areola complex and phyllodes tumour of the breast. The authors declare that they have no conflicts of interest. Most present in adults between menarche and menopause. The https:// ensures that you are connecting to the Epithelial component often not compressed - as in fibroadenoma. 2013 Jul 12;6:267. doi : 10.1186/1756-0500-6-267 PMID: 23849288 (Free), Histopathology of fibroadenoma of the breast. Pathology Outlines - Sclerosing adenosis 1 It is encountered in women usually before the age of 30 (commonly between 10-18 years of age), 2 although its occurrence in postmenopausal women, especially those receiving estrogen replacement therapy has been documented. 2004 Feb;21(1):48-56. Nissan N, Bauer E, Moss Massasa EE, Sklair-Levy M. Insights Imaging. Robert V Rouse MD rouse@stanford.edu. This site needs JavaScript to work properly. The pathology is in the stroma; so, the lesion is really a misnomer by the naming rules. The definitive diagnosis is made histologically by the presence . Calcifications, mediolateral oblique view, Sign up for our What's New in Pathology e-newsletter, Copyright PathologyOutlines.com, Inc. Click, 30150 Telegraph Road, Suite 119, Bingham Farms, Michigan 48025 (USA). sharing sensitive information, make sure youre on a federal Carty NJ, Carter C, Rubin C, Ravichandran D, Royle GT, Taylor I. Ann R Coll Surg Engl. Results: 2006 Jul;49(3):334-40. Fibroepithelial lesions revisited: implications for diagnosis and FNA diagnosis was retrospectively re-evaluated from FNA reports. Fibroadenoma, abbreviated FA, is a common benign tumour of the breast. Over time, a fibroadenoma may grow in size or even shrink and disappear. Complex fibroadenomas are often smaller than simple fibroadenomas (1.3 cm compared with 2.5 cm in simple fibroadenomas). No leaf-like architecture is present. (b) Ultrasound shows a well-defined oval nodule in the right axilla which was confirmed to be a fibroadenoma on core biopsy. The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Can occur at any age, but most patients are young and in their reproductive age group. At a mean follow-up of 2 years, we found a low incidence of malignancy in complex fibroadenomas. An official website of the United States government. and transmitted securely. The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). -->, Richard L Kempson MD Multiple, giant fibroadenoma. Stanford University School of Medicine A Comparison of the Histopathology of Premalignant and Malignant PMC A. PMID: 11345838 (Free), Long-term risk of breast cancer in women with fibroadenoma. Federal government websites often end in .gov or .mil. The luminal cell is epithelial. A study of 11 patients. Comparative Proteomic Profiling of Secreted Extracellular Vesicles from Breast Fibroadenoma and Malignant Lesions: A Pilot Study. There are numerous reports that the general risk of developing cancer in the breast parenchyma is elevated among women with complex fibroadenomas; these women are 3.1-3.7 times more likely to develop breast cancer than women in the general population (compared with a relative risk of 1.9 times in women with non-complex fibroadenomas). Fibroadenoma - an overview | ScienceDirect Topics Complex fibroadenomas were diagnosed in 63 of 401 fibroadenomas (15.7%) found at consecutive percutaneous needle or excisional surgical biopsy. incidental finding on histologic examination), Amorphous or pleomorphic clustered microcalcifications; architectural distortion or circumscribed to spiculated mass on mammogram (, Associated with increased mammographic breast density (, Heterogeneous echogenicity, irregular and ill defined mass, focal acoustic shadowing may be seen on ultrasound (, Small (< 1 cm) mass with benign kinetics on MRI (, As a single feature, increased risk of cancer of 1.5 - 2x, as seen with proliferative, 2x higher risk of breast cancer with increased, Does not provide further risk stratification in the presence of other proliferative disease / atypical hyperplasias (, Can mimic malignancy clinically and radiologically, 46 year old woman with sclerosing adenosis with mammogram and cytology mimicking malignancy (, 73 year old woman with sclerosing adenosis and coexisting ductal carcinoma in situ (, 82 year old woman with sclerosing adenosis in sentinel axillary lymph nodes (, Presence of sclerosing adenosis alone in a core biopsy does not require surgical excision, Coexisting atypia will typically prompt surgical consultation, Variable depending on extent of involvement and calcifications, May be indistinguishable from surrounding breast tissue, Multinodular, ill defined, cuts with increased resistance due to fibrosis, Gritty due to frequent calcifications but no chalky yellow white foci or streaks as seen in, Circumscribed to ill defined white, fibrotic mass if nodular adenosis / adenosis tumor, Low power: increase in glandular elements plus stromal fibrosis / sclerosis that distorts and compresses glands, Maintains lobular architecture at low power with rounded and well defined nodules, Centrally is more cellular with distorted and compressed ductules; peripherally has more open or dilated ductules, Often has microcalcifications, due to calcification of entrapped secretions, Preservation of luminal epithelium and peripheral myoepithelium (2 cell layer) with surrounding basement membrane, Myoepithelial cells may vary from being prominent to indistinct on routine H&E staining, Myoepithelial cells are readily apparent via immunohistochemistry, even if difficult to identify on H&E, Rarely penetrates walls of blood vessels or perineural spaces, Epithelium may be involved by proliferative, atypical lesions or in situ carcinoma, If involved by atypia or in situ carcinoma, If florid and overtly non-lobulocentric / (pseudo) infiltrative into fat or stroma, Conspicuous myoepithelial cells with attenuated epithelial cells can appear like stands of single cells and mimic invasive lobular carcinoma, Atypical apocrine metaplasia: nuclear atypia / rare mitosis (, Moderate to markedly cellular, with small to large groups of benign epithelial cells in acinar sheets / cohesive groups / tubules and scattered individual epithelial cells, Also small foci of dense hyalinized stroma (, Tubules may have an angular configuration (, Fibrocystic changes including sclerosing adenosis with microcalcifications, Haphazardly distributed glands (lacks lobulocentric pattern), Lacks myoepithelium but has intact basement membrane, Nodular growth may mimic nodular adenosis / adenosis tumor, Uniform, closely packed tubules (lacks significant distortion by fibrosis), May be difficult to morphologically distinguish from florid sclerosing adenosis with marked distortion and/or involvement by atypia or, More widely spaced tubules with single epithelial layer. phyllodes tumour, sarcoma, pseudoangiomatous . Hartmann LC, Sellers TA, Frost MH, Lingle WL, Degnim AC, Ghosh K, Vierkant RA, Maloney SD, Pankratz VS, Hillman DW, Suman VJ, Johnson J, Blake C, Tlsty T, Vachon CM, Melton LJ 3rd, Visscher DW. Compression of glandular elements - very commonly seen. abundant (intralobular) stroma usu. FNA of CFA can lead to erroneous or indeterminate interpretation, due to proliferative and/or hyperplastic changes of ductal epithelium with or without atypia. Within this cohort, women who had fibroadenoma were compared to women who did not have fibroadenoma. Contributed by Andrey Bychkov, M.D., Ph.D. Fibroadenomatoid changes (sclerosing lobular hyperplasia, fibroadenomatoid mastopathy), Benign biphasic tumor composed of a proliferation of both glandular epithelial and stromal components of the terminal duct lobular unit, Most common breast tumor in adolescent and young women, Benign biphasic tumor comprised of glandular epithelium and specialized interlobular stroma of the terminal ductal lobular unit (, Can show a spectrum of histologic appearances; generally uniform in stromal cellularity and distribution of glandular and stromal elements within a given lesion (an important distinction from phyllodes tumor), Fibroadenomas with hypercellular stroma and prominent intracanalicular pattern can show morphologic overlap with benign phyllodes tumors, especially in needle biopsy specimens, Fibroadenoma, usual type fibroadenoma, adult type fibroadenoma, Most common benign tumor of the female breast, Can occur at any age, median age of 25 years (, Juvenile fibroadenoma generally occurs in younger and adolescent patients < 20 years; reported in children at a very young age (, Complex fibroadenoma reported in older patients with median age between 35 - 47 years (, Increased relative risk (1.5 - 2.0) of subsequent breast cancer; relative risk is higher (3.1) in complex fibroadenomas; no increased risk for juvenile fibroadenoma (, Can occur in axilla accessory breast tissue, Increased risk associated with cyclosporine immunosuppression (, Often presents as painless, firm, mobile, slow growing mass, Usually solitary, can be multiple and bilateral, Usually less than 3 cm in diameter but may grow to large size (, Histologic examination of involved tissue, Sonographically seen usually as a round or oval mass, smooth margins with hypo or isoechoic features (, Can be associated with calcifications, especially in postmenopausal patients, 16 year old girl with 28 cm left breast mass (, 17 year old girl with recurrent juvenile fibroadenoma (, 18 year old woman with mass in axilla accessory breast tissue (, 35 year old woman with left breast mass (, 37 year old woman with increased uptake of breast mass on PET scan (, 44 year old woman with bilateral breast masses (, Management depends on patient risk factors and patient preference, Conservative management with close clinical followup, especially if concordant radiology findings (, Local surgical excision, especially if symptomatic (, If atypia / neoplasia is found within a fibroadenoma, the surgical and systemic therapeutic management is specific and appropriate to the primary atypical / neoplastic lesion, Firm, well circumscribed, ovoid mass with bosselated surface, lobulations bulge above the cut surface, slit-like spaces, May have mucoid or fibrotic appearance; can be calcified, Biphasic tumor, proliferation of both glandular and stromal elements, 2 recognized growth patterns (of no clinical significance, both patterns may occur within a single lesion), Intracanalicular: glands are compressed into linear branching structures by proliferating stroma, Pericanalicular: glands retain open lumens but are separated by expanded stroma, Glandular elements have intact myoepithelial cell layer, Often associated with usual type ductal hyperplasia, apocrine metaplasia, cyst formation or squamous metaplasia, Rare mitotic activity can be observed in the glandular component, has no clinical significance, Generally uniform cellularity within a given lesion, Collagen and bland spindle shaped stromal cells with ovoid or elongated nuclei, Usually no mitotic activity; rare mitotic activity may be present in young or pregnant patients (, Stroma may show myxoid change or hyalinization, Rarely benign heterologous stromal elements (adipose, smooth muscle, osteochondroid metaplasia), Fibroadenomas may be involved by mammary neoplasia (e.g. ; Chen, YY. Sign up for our What's New in Pathology e-newsletter, Copyright PathologyOutlines.com, Inc. Click, 30150 Telegraph Road, Suite 119, Bingham Farms, Michigan 48025 (USA). This page was last edited on 5 January 2021, at 19:25. MeSH Jacobs. The myoepithelial layer is hard to see at times. Printable - Fibroadenoma - Surgical Pathology Criteria - Stanford Findings can confirm benign nature of disease but are nonspecific, resembling fibroadenoma or phyllodes tumor (Indian J Pathol Microbiol 2005;48:260) Finding plump spindled mesenchymal cells is suggestive (Diagn Cytopathol 2005;32:345) sharing sensitive information, make sure youre on a federal As the name suggests, is typically found in younger patients. Unauthorized use of these marks is strictly prohibited. More frequent in young and black patients. The study included women aged 18-85 years from the Mayo Clinic Benign Breast Disease Cohort who underwent excisional breast biopsy from 1967 through 1991. New perfect grade gundam 2023 - qdh.treviso-aug.it Epidemiology. 1994 Sep;118(9):912-6. Department of Pathology. +/-"Stromal overgrowth" = large area where there is a 'loss of glands'. National Library of Medicine Patients with complex lesions were 18.5 years older (median age, 47 years; range, 21-69 years) than patients with noncomplex fibroadenomas (median age, 28.5 years; range, 12-86 years) (p < 0.001). Women with complex fibroadenomas may therefore be managed with a conservative approach, similar to the approach now recommended for women with simple fibroadenomas. Ann Surg Oncol. 1999 Aug;16(3):235-47. Breast disease: a primer on diagnosis and management. Breast, right, 2:00 zone 2, ultrasound guided core biopsy: Well developed leaf-like architecture, with accompanied increased stromal cellularity, Prominent mitotic activity 3/10 high power fields or the finding of 3 or more characteristic histologic features (stromal overgrowth, fat infiltration, stromal fragmentation, subepithelial stromal condensation, 1. Epub 2014 Feb 8. 1994 Jul 7;331(1):10-5. Because of their high mobility, they are also referred to as mouse in the breast/breast mouse. Long-term risk of breast cancer in women with fibroadenoma. Robert V Rouse MD Sosin M, Pulcrano M, Feldman ED, Patel KM, Nahabedian MY, Weissler JM, Rodriguez ED. Bookshelf Epub 2012 Aug 31. This site needs JavaScript to work properly. Approximately 16% of fibroadenomas are complex. Myxoid fibroadenomas differ from conventional fibroadenomas: a - PubMed stromal nuclear pleomorphism) is predictive of phyllodes tumor (versus fibroadenoma) in core Breast Fibroadenomas: Symptoms, Diagnosis, Treatment - Verywell Health ; Guinee, DG. Molecular pathology. If it grows to 5 cm or . 2001 Feb 19;174(4):185-8. doi: 10.5694/j.1326-5377.2001.tb143215.x. National Library of Medicine 1997 Sep-Oct;42(5):278-87. 2001 May;115(5):736-42. doi: 10.1309/F523-FMJV-W886-3J38. cysts larger than 3 mm. However, we cannot answer medical or research questions or give advice. N Engl J Med. Women with complex fibroadenomas may therefore be managed with a conservative approach, similar to the approach now recommended . Objective: Background Fibroepithelial lesions of the breast include fibroadenoma (FA) and phyllodes tumor (PT). Fibroadenoma (FA) is the most common type of breast lesion in young female individuals. They fall under the broad group of adenomatous breast lesions. It is usually single, but in 20% of cases there are multiple lesions in the same breast or bilaterally. 7. Guidelines for management of breast cancer author World Health Home; About Us; What makes us different? Epub 2022 May 31. Aims: Breast myxoid fibroadenomas (MFAs) are characterized by a distinctive hypocellular myxoid stroma, and occur sporadically or in the context of Carney complex, an inheritable condition caused by PRKAR1A-inactivating germline mutations. Please enable it to take advantage of the complete set of features! Board review style answer #1. The border is well-circumscribed where seen. atypical ductal hyperplasia, atypical lobular hyperplasia) often as a result of spread from an adjacent lesion, Similar structure but with prominent myxoid stromal change composed of abundant pale, blue-gray extracellular matrix material, Cysts > 3 mm, sclerosing adenosis, epithelial microcalcifications or papillary apocrine metaplasia (, Increased epithelial hyperplasia with gynecomastoid-like micropapillary projections, Usual (adult type) fibroadenoma: biphasic population composed of abundant spindle stromal cells and naked nuclei, epithelium arranged in antler horn clusters or fenestrated honeycomb sheets (, Myxoid fibroadenoma: high cellularity with stroma and epithelium embedded in myxoid background (, Cellular variant of fibroadenoma shows higher rates of mutation in. Giant fibroadenoma. They fall under the broad group of "adenomatous breast lesions". (Most fibroadenomas in adolescents are typical, adult type fibroadenomas and should be diagnosed as such) Giant fibroadenoma Tumors >500 g or disproportionally large compared to rest of breast; More frequent in young and black patients; We consider the term merely descriptive; May be either adult type or juvenile fibroadenomas Giant juvenile fibroadenoma of breast in adolescent girls "Cellular" is something that can be subjective. Materials and methods: We welcome suggestions or questions about using the website. Biphasic lesions of the breast. Breast Cancer Res Treat. ; Hashimoto, B.; Wolverton, D. et al. Disclaimer. One definition of "cellular" is: "stromal cells are touching one another". Fine-needle aspiration of gray zone lesions of the breast: fibroadenoma versus ductal carcinoma. Int J Environ Res Public Health. Pseudoangiomatous stromal hyperplasia and breast cancer risk. Four variants are described by the Washington Manual:[7], Considered a variant of fibroadenoma by many authorities:[8], Breast - Tubular Adenoma - low power (SKB), Breast - Tubular Adenoma - medium power (SKB), Breast - Tubular Adenoma - high power (SKB), Breast - Tubular Adenoma with lactational change (SKB). Mastopathic fibroadenoma of the breast: a pitfall of aspiration cytology. Fibroepithelial Lesions | Basicmedical Key BCDnet: Parallel heterogeneous eight-class classification model of breast pathology. Multinucleated stromal giant cells in mammary fibroepithelial neoplasms. O'Malley, Frances P.; Pinder, Sarah E. (2006). The lesion was shelled-out. Degnim AC, Frost MH, Radisky DC, Anderson SS, Vierkant RA, Boughey JC, Pankratz VS, Ghosh K, Hartmann LC, Visscher DW. A benign gland has two cell layers - myoepithelial and epithelial. Complex fibroadenoma. invasive breast carcinoma, ductal carcinoma in situ, lobular carcinoma in situ) and atypical epithelial proliferations (e.g. Stanford University School of Medicine. Epub 2015 Jan 13. No calcifications are evident. Understanding Your Pathology Report: Benign Breast Conditions Mitchell, Richard; Kumar, Vinay; Fausto, Nelson; Abbas, Abul K.; Aster, Jon (2011). Fibroadenoma - Wikipedia 1.5 - 2 times increased risk. Systematic review of fibroadenoma as a risk factor for breast cancer. IHC can aid in visualizing the myoepithelial layer. Giant breast tumours of adolescence. This website is intended for pathologists and laboratory personnel but not for patients. Maiorano, E.; Albrizio, M. (Dec 1995). The sections show a lesion with a pale mildly cellular stroma, and bland glandular elements. Fibroadenomas are benign while phyllodes tumor range from benign, indolent neoplasms to malignant tumors capable of distant metastasis. Unauthorized use of these marks is strictly prohibited. 1994 Jul 7;331(1):10-5. At the time the article was last revised Patrick J Rock had no recorded disclosures. 2006 Oct;192(4):545-7. doi: 10.1016/j.amjsurg.2006.06.011. 2022 Jul;194(2):307-314. doi: 10.1007/s10549-022-06631-2. Methods: panel curtains ikea vmware sase pop postbox near me. | Log in | Int J Fertil Womens Med. Simple: Most fibroadenomas are the simple type; they are more common in younger people.There's usually just one mass in your breast, with a definite border and very uniform cells. Subtypes. government site. In particular, these mutations are restricted to the stromal component. Management of fibroadenoma of the breast. Histopathology of fibroadenoma of the breast. These tumors are usually benign, but they can come back and cause the breast to look abnormal if not totally removed. Raganoonan C, Fairbairn JK, Williams S, Hughes LE. Breast cancer risk (observed versus expected) across fibroadenoma levels was assessed through standardized incidence ratios (SIRs) by using age- and calendar-stratified incidence rates from the Iowa Surveillance, Epidemiology, and End Results registry. Complex fibroadenoma with sclerosing adenosis (crowded, Complex fibroadenoma with sclerosing adenosis (crowded glands in a fibrotic stroma) (hematoxylin-eosin; original magnification, MeSH We evaluated the clinical and imaging presentations of complex fibroadenomas; com-pared pathology at core and exci sional biopsy; and cont rasted age, pathology, and size of com- Clipboard, Search History, and several other advanced features are temporarily unavailable. Pathology. Tumor-associated autoantibodies from mouse breast cancer models are found in serum of breast cancer patients. radial scar or papilloma) that is identified on imaging, May show enhancement on magnetic resonance imaging (, Associated with 1.5 - 2 times increased risk for subsequent breast cancer (, Risk may be slightly higher for patients with a positive family history of breast cancer (, Indicator of general breast cancer risk rather than direct precursor lesion, 30 year old woman with immature-like usual ductal hyperplasia in a fibroadenoma (, 75 year old woman with malignant phyllodes tumor with liposarcomatous differentiation and intraductal hyperplasia (, Usual ductal hyperplasia within gynecomastia-like changes of the female breast (, Proliferation of cells of luminal and myoepithelial lineages, occasionally with intermixed apocrine cells, Mild variation in cellular and nuclear size and shape, Relatively small ovoid nuclei with frequent elongated or asymmetrically tapered (pear shaped) forms, Lightly granular euchromatic chromatin and small nucleoli, Frequent longitudinal nuclear grooves (coffee bean-like) and occasional nuclear pseudoinclusions, Many examples demonstrate cellular maturation, where the cells shrink as they progress from a basal location to the center of the proliferation, becoming small and nearly pyknotic, Eosinophilic, nonabundant cytoplasm with indistinct cell borders, Cohesive proliferation with haphazard, jumbled cell arrangement or streaming growth pattern, Fenestrated, solid and occasional micropapillary patterns, Irregular slit-like fenestrations are common, especially along periphery, Cells run parallel to the edges of secondary spaces and do not exhibit a polarized orientation (this contrasts with the cells of atypical ductal hyperplasia and ductal carcinoma in situ, which have apical-basal polarity and radially orient their apical poles toward the spaces), Typically focal in a background of conventional pattern usual ductal hyperplasia, Short stubby papillae of roughly uniform height, Cytologic features of usual ductal hyperplasia, Cellular maturation present, with tips of papillae formed by tight knots of mature cells, Larger immature basal hyperplastic cells predominate or are increased beyond their usual 1 - 2 cell layers and are instead several cell layers thick, Most often encountered in fibroepithelial lesions with cellular stroma, Florid usual ductal hyperplasia can rarely demonstrate central necrosis, Typically occurs within a radial scar / complex sclerosing lesion, nipple adenoma or juvenile papillomatosis, Florid usual ductal hyperplasia within radial scars / complex sclerosing lesions can occasionally have more active appearing nuclei with mild nuclear enlargement, Other cytologic and architectural features of usual ductal hyperplasia remain intact, Sample may be moderately to highly cellular, Sheets and cohesive clusters of bland ductal cells with regular spacing and associated myoepithelial cells (, Lack of significant nuclear overlap / crowding, Ductal cell nuclei with finely granular chromatin and inconspicuous small nucleoli, Naked myoepithelial cell nuclei in the background may be present, Activating mutations in the PI3K / AKT / mTOR pathway may play a role in pathogenesis (, Round to oval nuclei with homogeneous, fine and hyperchromatic chromatin; inconspicuous nucleoli; and smooth nuclear contours, Increased amounts of pale eosinophilic to amphophilic cytoplasm with conspicuous cell borders, Cellular polarization around luminal and secondary spaces, Atypical architectural patterns formed by polarized growth (cribriform spaces, Roman arches, trabecular bars, micropapillae), Moderate nuclear enlargement throughout the proliferation, Abnormal chromatin, which may be hyperchromatic, cleared and clumped or coarsely granular, Solid epithelial proliferation showing marked expansion of multiple circumscribed duct spaces (, Thin fibrovascular cores punctuate the proliferation, with cellular palisading around the cores, Myoepithelial cells often sparse or absent along fibrovascular cores, Nuclei may superficially resemble those in usual ductal hyperplasia but demonstrate greater populational uniformity, are slightly larger and have abnormal chromatin, Often positive for neuroendocrine markers (, No change in risk compared to control populations, HMWCK mosaic positive / ER diffusely positive, HMWCK mosaic positive / ER heterogeneously positive. Mousa-Doust D, Dingee CK, Chen L, Bazzarelli A, Kuusk U, Pao JS, Warburton R, McKevitt EC. The purpose of this study is to examine the breast cancer risk overall among women with simple fibroadenoma or complex fibroadenoma and to examine the association of complex fibroadenoma with breast cancer through stratification of other breast cancer risks. Complex fibroadenoma is a sub type of fibroadenomaharboring one or more of the following features: Complex fibroadenomas tend to occur in older patients (median age, 47 years) compared with simple fibroadenomas (median age, 28.5 years). Fibroadenoma- Breast - Pathology Made Simple The term fibroadenoma combines the words "fibroma," meaning a tumor made up of fibrous tissue, and "adenoma," a tumor of gland tissue. Careers. Become a Gold Supporter and see no third-party ads. Accessibility Complex fibroadenomas are a fibroadenoma subtype harboring one or more complex features. government site. sclerosing adenosis and Bethesda, MD 20894, Web Policies Complex fibroadenoma with sclerosing adenosis (crowded glands in a fibrotic stroma) (hematoxylin-eosin; original magnification 10). Methods: From excisional biopsy or resected specimens of fibroadenoma (FA) cases treated at our institution from 2004 to 2013, we chose 46 . Accessibility Webpathology.com: A Collection of Surgical Pathology Images

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