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Patton A, Billings SD, Fritchie KJ. Myoepithelioma, myoepithelioma-like, and chondroid soft-tissue tumors arising at acral sites: a review. Hum Pathol 2023; 140:66-74. [PMID: 37054781 DOI: 10.1016/j.humpath.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/15/2023]
Abstract
Myoepithelial neoplasms comprise a histologically and immunophenotypically diverse spectrum of entities. The following review is a comprehensive summary of acral lesions demonstrating myoepithelial-like and chondroid histomorphology, as well as recently described mimics that are diagnostically challenging to distinguish. The salient clinicopathologic, immunophenotypic, and molecular features of each entity are described.
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Affiliation(s)
- Ashley Patton
- Department of Pathology & Laboratory Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, United States
| | - Steven D Billings
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, 44195, United States
| | - Karen J Fritchie
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, 44195, United States.
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He X, Wang Y, Zou C, Zheng C, Luo Y, Zhou Y, Tu C. Case Report: Gene Heterogeneity in the Recurrent and Metastatic Lesions of a Myxoid Chondrosarcoma Patient With Aggressive Transformation. Front Genet 2022; 13:791675. [PMID: 35910216 PMCID: PMC9330136 DOI: 10.3389/fgene.2022.791675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 06/23/2022] [Indexed: 11/29/2022] Open
Abstract
Extraskeletal myxoid chondrosarcoma (EMC) is a rare soft tissue sarcoma. In view of the indolent course throughout the prolonged natural history of EMC, it was considered as a low-grade soft-tissue sarcoma. However, recent studies have revealed a high recurrence and metastatic potential in EMC, and the invasiveness of EMC may progress during the protracted clinical course. The mechanism for this aggressive transformation remains unknown. Here, we present a rare case of EMC with aggressive behavior. This case was confirmed via pathology and NR4A3 fluorescent in situ hybridization. To verify the genetic characteristics of this rare case, a total gene sequencing analyses was performed in the recurrent and metastatic lesions. Intriguingly, different gene mutations were determined in the recurrent and metastatic lesions, which implied the genetic heterogeneity among the different lesions might be related to the aggressiveness of EMC. Furthermore, we discuss a few potential agents against the mutated genes in this case, which may provide novel insights regarding the targeted therapy of EMC.
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Affiliation(s)
- Xuanhong He
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Yitian Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Chang Zou
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Chuanxi Zheng
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Luo
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Yong Zhou
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Chongqi Tu
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
- Bone and Joint 3D-Printing & Biomechanical Laboratory, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Chongqi Tu,
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