Case Report
Copyright ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jun 26, 2023; 11(18): 4384-4391
Published online Jun 26, 2023. doi: 10.12998/wjcc.v11.i18.4384
Fibromatosis-like metaplastic carcinoma of the breast: Two case reports
Wei-Yu Bao, Jiang-Hong Zhou, Yan Luo, Yun Lu
Wei-Yu Bao, Department of Breast Surgery I, Gansu Provincial Cancer Hospital, Lanzhou 730050, Gansu Province, China
Jiang-Hong Zhou, Department of Nursing, Gansu Provincial Cancer Hospital, Lanzhou 730050, Gansu Province, China
Yan Luo, Department of Pathology, Gansu Provincial Cancer Hospital, Lanzhou 730050, Gansu Province, China
Yun Lu, Functional Department, Gansu Provincial Cancer Hospital, Lanzhou 730050, Gansu Province, China
Author contributions: Bao WY conducted data management; Bao WY and Zhou JH wrote the manuscript; Luo Y and Lu Y conducted a review and editing; All authors have read and approved the final manuscript.
Supported by 2020 Gansu Province Central Government Guide Local Science and Technology Development Project; and Gansu Province Natural Science Fund, No. 21JR1RA373.
Informed consent statement: Written informed consent was obtained from both patients in this case report.
Conflict-of-interest statement: All the authors report having no relevant conflicts of interest for this article.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Yun Lu, MM, Associate Chief Physician, Department of Functional, Gansu Provincial Cancer Hospital, No. 2 Xiaoxihu East Street, Qilihe District, Lanzhou 730050, Gansu Province, China. luyun12587@163.com
Received: March 22, 2023
Peer-review started: March 22, 2023
First decision: April 10, 2023
Revised: April 18, 2023
Accepted: May 12, 2023
Article in press: May 12, 2023
Published online: June 26, 2023
Processing time: 96 Days and 10.4 Hours
Core Tip

Core Tip: Fibromatosis-like metaplastic carcinoma is a rare type of metaplastic carcinoma of the breast with proliferating spindle cells as the main component, which is often misdiagnosed as low-grade mesenchymal tumors or proliferative lesions because of its mild morphology. Two cases of fibromatosis-like metaplastic carcinoma of the breast were reported and the literatures were reviewed. The pathological features were observed to ensure the correct diagnosis.