正常结肠黏膜。表明腺管由很多杯状细胞排列。黏膜下层有淋巴结。内脏相关的淋巴组织作为一个整体代表着体内最大的淋巴器官。
This is normal colonic mucosa. Note the crypts that are lined by numerous goblet cells. In the submucosa is a lymphoid nodule. The gut-associated lymphoid tissue as a unit represents the largest lymphoid organ of the body.
