目的 观察食管小细胞未分化癌的临床及病理形态特点 ，以探讨组织发生与预后的关系。
Objective To study histogenesis and prognosis of esophageal small cell undifferentiated carcinoma (ESCUC) by observing clinical and pathologic morphology characteristics.
目的：探讨食管原发性未分化小细胞癌临床病理特点。
Objective: To investigate the clinicopathologic features of undifferentiated small cell carcinoma of esophagus.
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