BENIGN PHYLLODES TUMOUR WITH CYSTIC SQUAMOUS METAPLASIA: A RARE HISTOLOGY FINDING
DOI:
https://doi.org/10.55519/JAMC-03-11586Keywords:
Benign Phyllodes Tumour, Borderline Phyllodes ,Cystic Squamous, Metaplasia, HistopathologyAbstract
Phyllodes tumour (PT) comprises 0.3–1% of all breast cancers and 3% of fibroepithelial neoplasm. It occurs more commonly in the fourth and fifth decades of life. Fibroepithelial neoplasms are composed of cells types with two different origins, commonly mesenchymal and epithelial. Histological features are important as this forms the basis of the categorization of PT into benign, borderline and malignant types, thus facilitating management. Metaplasia in any of the two components of PT is rare and the cystic squamous type of metaplasia has even more infrequent histological features. Case: This paper presents the case of a 63-year-old female with a palpable lump in the lower outer quadrant of left breast. Histology showed a benign Phyllodes tumour with patchy, cystic squamous metaplasia within the lesion, keratin production and foreign-body reaction in response to keratin spillage. The previously done core biopsy was also reviewed, which showed focal stromal cell condensation and features overlapping between benign and borderline phyllodes tumours. Conclusion: The case was presented because of its unique and rare histological picture of Cystic squamous metaplasia in benign PT and a further rarer finding of foreign body reaction to keratin spillage.References
Rowell MD, Perry RR, Hsiu JG, Barranco SC. Phyllodes tumors. Am J Surg 1993;165(3):376–9.
Rosen PP. Rosen′s Breast Pathology. 2nd ed. New York, NY, USA: Lippincott William Wilkins; 2001.
Krings G, Bean GR, Chen YY. Fibroepithelial lesions; The WHO spectrum. Semin Diagn Pathol 2017;34(5):438–52.
WHO. Histologic Typing of Breast Tumors. 2nd ed., Vol. 2. Geneva, Switzerland: World Health Organization; 1981.
Reddick RL, Jennette JC, Askin FB. Squamous metaplasia of the breast. An ultrastructural and immunologic evaluation. Am J Clin Pathol 1985;84(4):530–3.
Tan BY, Acs G, Apple SK, Badve S, Bleiweiss IJ, Brogi E, et al. Phyllodes tumours of the breast: A consensus review. Histopathology 2016;68(1):5–21.
Chakrabarti I, Agarwala P, Bera P, Bhaduri S. Benign phyllodes tumor with cystic squamous metaplasia: A Cytohistological correlation of a rare case. Iran J Pathol 2017;12(3):291–4.
Kumar H, Iqbal MB, Buch A, Panicker N. Extensive squamous metaplasia in a benign phyllodes tumor: A rare case report. Med J Dr DY Patil Univ 2015;8(3):404–6.
Mascolo M, Mignogna C, De Cecio R, Bonuso C, Accurso A. Squamous metaplasia of the breast simulating a malignant neoplasm: a case. Eur J Cancer Care (Engl) 2009;18(6):650–2.
Gottfried MR. Extensive squamous metaplasia in gynecomastia. Arch Pathol Lab Med 1986;110(10):971–3.
Söderstrom KO, Toikkanen S. Extensive squamous metaplasia simulating squamous cell carcinoma in benign breast papillomatosis. Hum Pathol 1983;14(12):1081–2.
Devi PM, Singh LR, Gatphoh ED. Fibroadenoma with squamous metaplasia. Singapore Med J 2007;48(7):682–3.
Additional Files
Published
Issue
Section
License
Copyright (c) 2023 Shaista Zafar, Tagwa Elsheikh, Mirza Sharjil Baig, Javeria Iqbal
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
Journal of Ayub Medical College, Abbottabad is an OPEN ACCESS JOURNAL which means that all content is FREELY available without charge to all users whether registered with the journal or not. The work published by J Ayub Med Coll Abbottabad is licensed and distributed under the creative commons License CC BY ND Attribution-NoDerivs. Material printed in this journal is OPEN to access, and are FREE for use in academic and research work with proper citation. J Ayub Med Coll Abbottabad accepts only original material for publication with the understanding that except for abstracts, no part of the data has been published or will be submitted for publication elsewhere before appearing in J Ayub Med Coll Abbottabad. The Editorial Board of J Ayub Med Coll Abbottabad makes every effort to ensure the accuracy and authenticity of material printed in J Ayub Med Coll Abbottabad. However, conclusions and statements expressed are views of the authors and do not reflect the opinion/policy of J Ayub Med Coll Abbottabad or the Editorial Board.
USERS are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access.
AUTHORS retain the rights of free downloading/unlimited e-print of full text and sharing/disseminating the article without any restriction, by any means including twitter, scholarly collaboration networks such as ResearchGate, Academia.eu, and social media sites such as Twitter, LinkedIn, Google Scholar and any other professional or academic networking site.