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(A) Overall survival of all 60 cases of intrathoracic ESOS; (B) survival curves of ESOS patients with different originating sites. The median overall survival for patients with intrathoracic ESOS was 11 months (95% CI: 8.1–13.9) and the 5-year overall survival was 22.3%. ESOS in the mediastinum and lung had a significantly worse overall survival compared with that located in the chest wall or pleural (log-rank P=0.0443).
