splenic nodule

The results indicated that T and B cells accumulated around the arterioles in the early fetal spleen , which looked like a small colony on cross section of arteriole . Following the increase of lymphocytes , the colonies gradually developed to splenic nodule or peripheral lymphatic sheath separately .

结果发现胎儿脾内T、B淋巴细胞集聚是沿血管分布的，开始为集落样，随着淋巴细胞不断增加，则分别发育为脾小结和动脉周围淋巴鞘。