求翻译：早期直肠癌：早期直肠癌系指癌灶局限于直肠黏膜层和黏膜下层内的病变，一般无淋巴结转移，但癌肿侵至黏膜下层者，约有5%～10%可发生局部淋巴结转移。大体所见可分为3型：A.息肉隆起型：外观为局部隆起的黏膜，可有蒂或亚蒂或呈现广基3种情况，此型多为黏膜内癌;B.扁平隆起型：黏膜略厚，表面不突起或轻微隆起，呈硬币状;C.扁平隆起伴溃疡：如小盘状，表面隆起而中心凹陷，见于黏膜下层癌。是什么意思？

Early colorectal cancer: refers to foci of early cancer confined to the rectal mucosa and submucosa within the lesion, usually without lymph node metastasis, tumor invasion to the submucosa but were about 5% to 10% of the regional lymph node metastasis can occur. Generally seen can be divided into t

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Early Rectal Cancer: Early Rectal Cancer is refers to the cancer stove to limit to the rectum mucous membrane level and in the mucous membrane lower level pathological change, general non-lymph node shift, but cancer invades to the mucous membrane lower level, some 5%~10% may have the partial lymph

Early colorectal cancer: early rectal carcinoma refers to cancer confined focal lesions in the Rectal Mucosa and submucosa, generally without lymph node metastases, but cancer invading to the submucosa, about 5%~10% regional lymph node metastasis can occur. Generally can be divided into 3 types: a.

Early colorectal cancer: refers to foci of early cancer confined to the rectal mucosa and submucosa within the lesion, usually without lymph node metastasis, tumor invasion to the submucosa but were about 5% to 10% of the regional lymph node metastasis can occur. Generally seen can be divided into t