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Background  Esophageal carcinosarcoma is a relatively rare malignant neoplasm composed of both epithelial carcinomatous and mesenchymal sarcomatous elements. There is no recommended clinical treatment for esophageal carcinosarcoma because of the rarity of the disease. This report describes a case of esophageal carcinosarcoma that was effectively treated with docetaxel, cisplatin, and 5-fluorouracil as preoperative chemotherapy.    Case presentation  A 73-year-old man had a chief complaint of dysphagia with epigastric pain. Esophagogastroduodenoscopy (EGD) revealed a polypoid neoplasm combined with an infiltrative ulcer that exhibited a mixture of squamous cell carcinoma and spindle cell sarcoma histologically. Computed tomography findings showed swollen lymph nodes in the mediastinum and around the cardia. We diagnosed esophageal carcinosarcoma cT3N1M0 cStage III. After preoperative chemotherapy with docetaxel, cisplatin, and 5-fluorouracil, the patient underwent thoracoscopic esophagectomy with three-field lymph node dissection. Histological findings revealed that the sarcomatous component had completely disappeared and the carcinomatous component was only confined by the basement membrane with scar formation of the muscularis propria. Mural fibrotic lesions were observed in several resected regional lymph nodes. Hence, immediately after preoperative therapy, the esophageal carcinosarcoma was diagnosed as ypTisN0M0 fStage I. The patient remained alive without tumor recurrence at 12 months after the operation.    Conclusions  A review of the literature revealed that there is still no established therapeutic strategy for locally advanced esophageal carcinosarcoma, especially against the sarcomatous component. We herein provide the first report in which the sarcomatous component showed a complete response to preoperative chemotherapy with docetaxel, cisplatin, and 5-fluorouracil. Preoperative chemotherapy with docetaxel, cisplatin, and 5-fluorouracil followed by esophagectomy with extended lymphadenectomy may achieve definitive treatment for locally advanced esophageal carcinosarcoma.

surgical case reports

Preoperative chemotherapy with docetaxel, cisplatin, and 5-fluorouracil for locally advanced esophageal carcinosarcoma: a case report and review of the literature