Your new experience awaits. Try the new design now and help us make it even better

CASE REPORT article

Front. Immunol.

Sec. Cancer Immunity and Immunotherapy

Volume 16 - 2025 | doi: 10.3389/fimmu.2025.1590848

This article is part of the Research TopicCancer Immunity and RadiotherapyView all 15 articles

Salvage Sequential Integrated Boost Radiotherapy followed by Sintilimab–Bevacizumab in Cervical Small-Cell Carcinoma with >10 Brain Metastases: A 3-Year Survivor Case Report

Provisionally accepted
Yuanyuan  XuYuanyuan XuXiang  GongXiang GongHuailin  HeHuailin HeXiangyu  DengXiangyu DengZhenhua  ZhangZhenhua ZhangQinglian  WenQinglian WenDan  LiDan Li*
  • The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China

The final, formatted version of the article will be published soon.

Background: Cervical small cell carcinoma (CSCC) is a rare and highly aggressive malignancy with a poor prognosis. Brain metastases develop in 10–20% of patients, complicating clinical management and underscoring the need for effective therapeutic strategies. Case presentation: A 54-year-old female with CSCC developed 16 isolated brain metastases during treatment. She responded markedly to whole-brain radiotherapy (WBRT) combined with sequential integrated boost radiotherapy (SEB). Although recurrence emerged outside the SEB field one year later, subsequent treatment with immune checkpoint inhibitors and antiangiogenic agents induced complete remission (CR), achieving a progression-free survival (PFS) of 16 months. Remarkably, the patient has achieved an overall survival of 3 years since the diagnosis of brain metastases, without significant treatment-related cognitive impairment, and remains in CR. Conclusion: The combination of WBRT and SEB improves metastatic dose coverage in CSCC patients with multiple brain metastases. Furthermore, combining immunotherapy with antiangiogenic therapy demonstrates significant efficacy against post-radiation intracranial recurrence, supporting a multimodal individualized approach for further study.

Keywords: multiple intracranial brain metastases, cervical small cell carcinoma, Whole-brain radiotherapy, sequential integrated boost radiation therapy, Immunotherapy, Vascular-targeted therapy

Received: 10 Mar 2025; Accepted: 25 Sep 2025.

Copyright: © 2025 Xu, Gong, He, Deng, Zhang, Wen and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dan Li, lidan0918@163.com

Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.