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

Hi, I'm Sophia Schermerhorn, a research fellow at Cincinnati Children's, and here's an article that you should know about. In 2024, Writer etal published a multi-center retrospective study in the Journal of Pediatric Surgery through PeaceSOC, the Pediatric Surgical Oncology Research Collaborative, a network of over 50 centers in North America that work together to improve outcomes in pediatric surgical oncology. This study looked at patients less than 22 years old with initially localized Ewing sarcoma who. Developed the first pulmonary relapse between 2007 and 2020 across 19 different centers. Here's what they found. Among 33 patients, about 2/3 had relapse limited to the lungs, and nearly half of those patients had just a solitary pulmonary nodule. In the group with the solitary pulmonary nodule, these patients were more likely to undergo metacystectomy and whole lung radiation, and had the highest overall three-year survival at 73%. Compared to 40% for those with multiple nodules and just 23% for those with extra pulmonary disease. Why does this matter? This pattern suggests that solitary pulmonary relapse may represent a biologically more favorable type of recurrence. One that's more amenable to achieving meaningful local control, with metacystectomy playing an important role as part of multimodal therapy. So with that in mind, would you offer a metacystectomy for a solitary Ewing relapse at your institution?