Extraosseous Ewing Sarcoma of the Cervical Esophagus: Case Report and Literature Review.

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This study presents a case of Extraosseous Ewing sarcoma arising in the cervical esophagus of a 36-year-old woman who presented with cervical mass and dysphagia. Imaging studies demonstrated a well-defined, cystic-solid mass in the neck extending into the upper mediastinum, which results in deviation of the trachea and esophagus. The relationship between the tumor and the cervical esophagus was found in the operation. The patient underwent localized tumor resection without radical esophagectomy. The accurate diagnosis was obtained by the immunohistochemistry and molecular genetic assay. Although this is a rare site for this type of tumor to occur, extraosseous Ewing sarcoma should be considered in the differential diagnosis of small round cell tumors of the cervical esophagus. The postoperative chemotherapy and radiotherapy are of great value in improving the prognosis of cervical esophageal Ewing sarcoma.

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