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Brain Metastases in Sarcomas: A Multicenter Retrospective Cohort Study
Ellen Zhang1, Sheima Farag2, Hilary Dietz3
1Department of Medicine Division of Oncology, Stanford University School of Medicine, Stanford, CA 94304, USA.
Cancers
|November 27, 2024
Summary
Brain metastases (BM) in sarcomas are rare and have a poor prognosis, with a median survival of only 6 months. Surgery and chemotherapy significantly improved survival, while stereotactic radiosurgery showed better outcomes than whole-brain radiation therapy.
Area of Science:
- Oncology
- Neurosurgery
- Medical Oncology
Background:
- Brain metastases (BM) from sarcomas are uncommon but associated with a dismal prognosis.
- Sarcoma BM often present concurrently with metastases in other sites, primarily the lungs.
Purpose of the Study:
- To describe the demographic and clinical characteristics of patients with sarcoma BM.
- To analyze treatment strategies and survival outcomes for sarcoma BM.
- To identify factors influencing survival in this patient population.
Main Methods:
- Retrospective analysis of 81 patients with sarcoma BM across five centers.
- Evaluation of demographic data, clinical presentation, and treatment modalities.
- Multivariate analysis to determine predictors of survival.
Main Results:
- Leiomyosarcoma and undifferentiated pleomorphic sarcoma were the most common histologies.
- Median time from sarcoma diagnosis to BM was 1.9 years; 88.9% of patients were symptomatic at presentation.
- Surgery (HR 0.30) and chemotherapy (HR 0.23) significantly improved survival; stereotactic radiosurgery (SRS) offered better outcomes than whole-brain radiation therapy (WBRT).
- Leptomeningeal disease conferred a significantly poorer prognosis.
Conclusions:
- Patients with sarcoma BM face a poor prognosis, with a median survival of 6 months.
- Leptomeningeal metastases represent a rare but particularly grim presentation.
- Further research is needed to establish treatment guidelines for sarcoma BM, optimizing therapeutic strategies.
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