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回顾性分析了１２例经病理证实为原发性食管小细胞未分化癌的临床资料。其１、３、５年生存率分别为５８３％、１６７％、０。１２例病人５年内均死于肿瘤局部未控、复发或远处转移。通过对其转移途径、治疗方法、死因的初步探讨和分析，提示本病恶性程度高，治疗失败的主要原因是远处转移。因此，今后治疗的方向应采用非手术性为主的综合性治疗；治疗的重点应提高局部病灶的控制率，降低远处脏器的转移率
Retrospective analysis of 12 cases of pathologically confirmed primary esophageal small cell undifferentiated carcinoma clinical data. The 1-, 3-, and 5-year survival rates were 58. 3%, 16.7%, and 0. Twelve patients died of uncontrolled tumor, recurrence, or distant metastasis within 5 years. Through the preliminary exploration and analysis of its metastatic route, treatment methods, and causes of death, the malignancy of the disease is high, and the main reason for treatment failure is distant metastasis. Therefore, the direction of treatment in the future should be a non-surgical comprehensive treatment; the focus of treatment should be to improve the control rate of local lesions, reduce the rate of transfer of distant organs