Under the optical microscope, there were large area of mucosa coloboma in the rats of model group, the ulcer penetrated to muscular layer and serous coat; 光镜下观察可见模型组大鼠存在大范围粘膜缺损,溃疡深达肌层与浆膜层;
The survival analysis indicated that the factors influencing prognosis include tumor diameter, serous coat invasion and lymph node metastasis. 生存分析提示肿瘤直径、浸润深度及淋巴结转移影响患者预后。