Normal gastric epithelium at the left merges into the carcinoma at the right, and irregular neoplastic glands infiltrate downward into the submucosa. 左边正常的胃上皮与右边的肿瘤相连，呈不规则样的腺样癌组织向下侵蚀到粘膜下层。
That makes it possible, for instance, to establish whether the cancer in this tissue has spread to lymph nodes elsewhere in the body. 例如，利用这个技术，就有可能确定这块取材上的癌组织在体内是否转移到其它的淋巴结上。
