4.7 Article

Case report: Immunotherapy plus chemotherapy and stereotactic ablative radiotherapy (ICSABR): a novel treatment combination for Epstein-Barr virus-associated lymphoepithelioma-like intrahepatic cholangiocarcinoma

Journal

FRONTIERS IN PHARMACOLOGY
Volume 14, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fphar.2023.1147449

Keywords

Epstein-Barr virus-associated lymphoepithelioma-like intrahepatic cholangiocarcinoma; tumor immune microenvironment; immunotherapy; stereotactic ablative radiotherapy; long survival

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Epstein-Barr virus-associated lymphoepithelioma-like intrahepatic cholangiocarcinoma (EBVa LEL-ICC) is a rare tumor that has shown inconsistent response to immunotherapy. We report a case of a 53-year-old woman with EBVa LEL-ICC who initially responded to immunotherapy and chemotherapy but developed resistance. Stereotactic ablative radiotherapy (SABR) was added to the patient's treatment, resulting in successful tumor shrinkage. Surgery and SABR are effective adjuncts to improve the survival rate of patients with EBVa LEL-ICC.
Epstein-Barr virus-associated lymphoepithelioma-like intrahepatic cholangiocarcinoma (EBVa LEL-ICC) is a rare tumor, characterized by a rich tumor immune microenvironment (TIME). While this tumor is reportedly sensitive to immunotherapy, its response has been inconsistent. This decreased sensitivity was associated with reduced TIME abundance. We report the case of a 53-year-old woman with EBVa LEL-ICC having reduced TIME abundance. The patient presented with a liver lesion, which was detected using ultrasound. Initially, the tumor was sensitive to immunotherapy and chemotherapy (IC), but resistance developed after a short interval. Subsequently, stereotactic ablative radiotherapy (SABR) was added to the patient's treatment, which now consisted of ICSABR. Successful tumor shrinkage was achieved with the combination therapy regimen. Thus, surgery and ICSABR are effective adjuncts to the first-line IC therapy in improving the survival rate of patients with EBVa LEL-ICC. The results of this study support multidisciplinary treatment as a viable treatment strategy for EBVa LEL-ICC.

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