Pediatric Hematology Oncology Journal (Mar 2025)

Current management of pulmonary relapse in Ewing sarcoma: A report from the Pediatric Surgical Oncology Research Collaborative

  • Audra J. Reiter,
  • Lynn Huang,
  • Jennifer H. Aldrink,
  • Brian T. Craig,
  • Andrew M. Davidoff,
  • Lindsay J. Talbot,
  • Jordan Coggins,
  • Jasmine Smith,
  • Katherine C. Bergus,
  • Taleen A. MacArthur,
  • Stephanie F. Polites,
  • Roshni Dasgupta,
  • Chloe Boehmer,
  • Joseph Brungardt,
  • Marcus M. Malek,
  • Hannah N. Rinehardt,
  • Zachary J. Kastenberg,
  • Cameron M. Arkin,
  • Antoine Gourmel,
  • Nelson Piche,
  • Marshall Wallace,
  • Jiancong Liang,
  • Harold N. Lovvorn, III,
  • Robin T. Petroze,
  • Gwendolyn Gillies,
  • John P. Marquart,
  • Kerri Becktell,
  • Hau D. Le,
  • Juan Favela,
  • Barrie S. Rich,
  • Richard D. Glick,
  • Natashia M. Seemann,
  • Jacob Davidson,
  • Claire A. Wilson,
  • Jonathan Roach,
  • Erin G. Brown,
  • Kathleen E. Doyle,
  • Brian A. Coakley,
  • Pamela Emengo,
  • Pamela Merola,
  • Christa N. Grant,
  • Anuritha Tirumani,
  • Elisabeth T. Tracy,
  • Mary E. Moya-Mendez,
  • Timothy B. Lautz

DOI
https://doi.org/10.1016/j.phoj.2024.11.105
Journal volume & issue
Vol. 10, no. 1
pp. 20 – 23

Abstract

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Background: Relapse occurs in 30–40 % of patients with localized Ewing sarcoma (EWS). Our objective was to describe the current management and outcomes of patients with initially localized EWS who experience first pulmonary relapse. Methods: This multi-center retrospective cohort study included patients ≤22 years old with initially localized EWS treated from 2007 to 2020 at 19 Pediatric Surgical Oncology Research Collaborative institutions, who developed pulmonary relapse. Kaplan-Meier analysis was performed. Results: Thirty-three patients with initially localized EWS developed pulmonary relapse at a median age of 17 (IQR 14; 20) years. Eleven (33 %) patients also had extra-pulmonary metastases (EPM) at relapse. Among the 22 (67 %) patients with pulmonary-only relapse, 10 (45 %) had solitary pulmonary nodules. Pulmonary metastasectomy was performed in 8/10 (80 %) patients with solitary pulmonary-only metastases, 5/12 (42 %) patients with multiple pulmonary-only metastases, and 2/11 (18 %) patients who also had EPM. Whole lung irradiation was administered in 7/10 (70 %) with solitary pulmonary-only metastases, 7/12 (58 %) with multiple pulmonary-only metastases, and 2/11 (18 %) with EPM. Rates of further pulmonary relapse/progression were similar between groups (p = 0.97). In Kaplan-Meier analysis, 3-year overall survival was 73 % with solitary pulmonary-only metastases, 40 % with multiple pulmonary-only metastases, and 23 % with EPM (p = 0.097). Conclusions: While survival for patients with relapsed EWS is poor, the subset of patients with solitary relapse confined to the lung are often good candidates for pulmonary metastasectomy and have a non-statistically significant trend towards improved survival outcomes.

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