Case Report
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Sep 6, 2021; 9(25): 7579-7587
Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7579
Breast adenoid cystic carcinoma arising in microglandular adenosis: A case report and review of literature
Jin Kyung An, Jeong Joo Woo, Eun Kyung Kim, Hee Yong Kwak
Jin Kyung An, Jeong Joo Woo, Department of Radiology, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul 01830, South Korea
Eun Kyung Kim, Department of Pathology, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul 01830, South Korea
Hee Yong Kwak, Department of Surgery, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul 01830, South Korea
Author contributions: An JK contributed to conceptualization and supervision; An JK and Kim EK do the original draft preparation; An JK, Kim EK and Kwak HY do the data curation; An JK, Woo JJ and Kim EK do the formal analysis; all author validate, review and edit the manuscript.
Informed consent statement: This study was reviewed and approved as a retrospective case report by the Institutional Review Board of Eulji Medical Center, Seoul, Korea (EMCIRB 2021-01-003), with informed consent from the patient waived.
Conflict-of-interest statement: The authors have no potential conflicts of interest to disclose.
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: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Jin Kyung An, MD, PhD, Associate Professor, Department of Radiology, Nowon Eulji Medical Center, Eulji University School of Medicine, 68 Hangeulbiseok-ro, Nowon-gu, Seoul 01830, South Korea. jkan0831@eulji.ac.kr
Received: March 31, 2021
Peer-review started: March 31, 2021
First decision: June 7, 2021
Revised: June 7, 2021
Accepted: July 29, 2021
Article in press: July 29, 2021
Published online: September 6, 2021
Processing time: 152 Days and 18.3 Hours
Core Tip

Core Tip: Many pathological or clinical studies have been reported for adenoid cystic carcinoma (AdCC) arising in microglandular adenosis (MGA), but few reports have been reported of radiological findings. In our case, it was characterized by iso- or slight hypo-density in the mammogram and slightly higher echo than that of fat in the ultrasound examination with higher T2 signal intensity and a persistent enhancing pattern in breast magnetic resonance imaging. Although AdCC shows a favorable prognosis and MGA has long been considered a benign entity, there is a risk of MGA becoming malignant and a complete resection should be performed.