A Clear Cell Sarcoma Case: A Diagnostic and Treatment Challenge, with a Promising Response to Trabectedin

Other authors

Institut Català de la Salut

[Galera M, Álvarez R, Arregui M] Medical Oncology Department, Hospital Universitario Gregorio Marañón, Madrid, Spain. [Paniagua M] Radiology Department, Hospital Universitario Gregorio Marañón, Madrid, Spain. [Álvarez A] Radiation Oncology Department, Hospital Universitario Gregorio Marañón, Madrid, Spain. [González Crisostomo RA] De La Salle Medical and Health Sciences Institute, Governor, Damariñas, Philippines. [Díazgranados A] Servei d’Anatomia Patològica, Vall d’Hebron Hospital Universitari, Barcelona, Spain

Vall d'Hebron Barcelona Hospital Campus

Publication date

2024-01-24T08:16:53Z

2024-01-24T08:16:53Z

2023



Abstract

Clear cell sarcoma; Radiotherapy; Trabectedin


Sarcoma de cèl·lules clares; Radioteràpia; Trabectedina


Sarcoma de células claras; Radioterapia; Trabectedina


Introduction: Clear cell sarcoma (CCS) is a rare and aggressive soft tissue sarcoma. CCS is characterized by the translocation t(12;22) (q13;q12), involving the fusion of EWSR1 and ATF1 genes, and less frequently the fusion gene EWSR1-CREB1. Usually, CCSs are considered poorly responsive to conventional chemotherapy. However, trabectedin has shown activity against translocation-related sarcomas. Furthermore, preclinical results suggest that trabectedin is a promising antitumor agent for CCS, potentially inducing melanocytic differentiation. Case Presentation: We report the case of a challenging anatomopathological diagnosis in a patient with an aggressive metastatic CCS. Following the diagnosis of CCS, the patient experienced a clinical and radiological tumor response to trabectedin after four lines of treatment. Conclusion: This is a novel report of CCS treated with trabectedin that resulted in a partial response and suggests the need for further research on trabectedin as a therapeutic option for CCS.


This research was funded by PharmaMar, S.A.

Document Type

Article


Published version

Language

English

Publisher

Karger

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Attribution-NonCommercial 4.0 International

http://creativecommons.org/licenses/by-nc/4.0/

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