Case Report
Copyright ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jan 16, 2023; 11(2): 417-425
Published online Jan 16, 2023. doi: 10.12998/wjcc.v11.i2.417
Fat-poor renal angiomyolipoma with prominent cystic degeneration: A case report and review of the literature
Shi-Qi Lu, Wei Lv, You-Jun Liu, Huan Deng
Shi-Qi Lu, Medical College, Nanchang University, Nanchang 330006, Jiangxi Province, China
Wei Lv, Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610044, Sichuan Province, China
You-Jun Liu, Department of Radiology, The Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China
Huan Deng, Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China
Author contributions: Lu SQ and Lv W carried pathological analyses and drafted the manuscript; Liu YJ analyzed the images; Deng H conceived of this study and drafted the manuscript; and all authors issued final approval for the version to be submitted.
Supported by the National Science Foundation of China, No. 81860490 and 82160546; and the Science Foundation of Jiangxi Province, No. 20202BBG73027.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: All the authors report 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: Huan Deng, MD, PhD, Professor, Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, No. 133 South Guangchang Road, Nanchang 330003, Jiangxi Province, China. beandeng@ncu.edu.cn
Received: October 7, 2022
Peer-review started: October 7, 2022
First decision: November 4, 2022
Revised: November 16, 2022
Accepted: December 21, 2022
Article in press: December 21, 2022
Published online: January 16, 2023
Processing time: 96 Days and 21.9 Hours
Core Tip

Core Tip: Angiomyolipoma (AML) is a clinically common benign kidney tumor. The majority of classic AMLs can be diagnosed preoperatively through radiological technology because of the appearance of an adipose component. We report a rare case of a fat-poor renal AML (RAML) with prominent cystic degeneration. The establishment of RAML diagnosis is challenging because of the lack of specificity of imaging features. Histopathological and immunohistochemical examinations show that the three classic components express AML markers, supporting the final diagnosis.