直肠癌的扩散及手术所需切除的范围与淋巴回流的途经有密切关系,因此熟悉直肠肛管的淋巴系解剖,有重要临床意义.一、直肠的器官内淋巴管1、直肠粘膜层和粘膜下层的毛细淋巴管及淋巴管:在直肠粘膜层固有膜的深部,腺底与粘膜肌之间有一层毛细淋巴管网.于固有膜淋巴小结的周围,毛细淋巴管吻合成网,呈筐状包绕淋巴小结,但毛细淋巴管 The spread of rectal cancer and the extent of resection required for surgery are closely related to the path of lymphatic flow. Therefore, it is important to be familiar with the anatomy of the anal canal of the rectum. First, the rectal organ lymphatics 1, the rectal mucosa and the mucous membranes. The underlying lymphatic and lymphatic vessels: In the deep part of the lamina propria of the rectal mucosa, there is a layer of capillary lymphatic network between the gland base and the mucous membranes. Lymphatic vessels in the lymphatic nodules around the lamina propria are anastomosed into a net. Lymph nodes, but lymphatic capillaries