睾丸小叶内的淋巴间隙
Lymphatic Spaces in Testis Lobule
HE染色:12周胎儿睾丸组织尚未分化,呈索状,14周胎儿睾丸组织隐约可见到睾丸小叶,但生精小管不能区分,16周始见生精小管结构,但无管腔。
HE staining : The tissue of testes of 12 weeks have not differentiation , as cord .