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©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Aug 26, 2022; 10(24): 8735-8741
Published online Aug 26, 2022. doi: 10.12998/wjcc.v10.i24.8735
Published online Aug 26, 2022. doi: 10.12998/wjcc.v10.i24.8735
Malignant melanotic nerve sheath tumors in the spinal canal of psammomatous and non-psammomatous type: Two case reports
Jeong A Yeom, Department of Radiology, Pusan National University Yangsan Hospital, Yangsan 50612, South Korea
You Seon Song, In Sook Lee, Department of Radiology, Pusan National University Hospital, Busan 49241, South Korea
In Ho Han, Department of Neurosurgery, Pusan National University Hospital, Busan 49241, South Korea
Kyung Un Choi, Department of Pathology, Pusan National University Hospital, Busan 49241, South Korea
Author contributions: Song YS and Yeom JA contributed to manuscript writing, editing and data collection; Choi KU and Han IH contributed to data analysis; Lee IS contributed to conceptualization and supervision; All authors have read and approved the final manuscript.
Supported by a Clinical Research Grant from Pusan National University Hospital (2020).
Informed consent statement: Informed written consent was obtained from the patients 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: You Seon Song, Doctor, MD, PhD, Assistant Professor, Department of Radiology, Pusan National University Hospital, No. 179 Gudeok-ro, Seo-gu, Busan 49241, South Korea. yssongrad@gmail.com
Received: March 21, 2022
Peer-review started: March 21, 2022
First decision: May 30, 2022
Revised: June 11, 2022
Accepted: July 16, 2022
Article in press: July 16, 2022
Published online: August 26, 2022
Peer-review started: March 21, 2022
First decision: May 30, 2022
Revised: June 11, 2022
Accepted: July 16, 2022
Article in press: July 16, 2022
Published online: August 26, 2022
Core Tip
Core Tip: Spinal malignant melanotic nerve sheath tumor (MMNST) are rare entities. We report two cases of spinal MMNSTs with or without psammomatous bodies. These cases highlight the importance of considering these rare entities when there are characteristic imaging findings such as the presence of intra-lesional T1-hyperintensity or calcification in intradural spinal tumors.