Clinicopathological characteristics of ductal adenocarcinomas arising from the ventral and dorsal pancreas 腹胰或背胰发生的胰头癌在临床病理特点及预后上的差异
Electron microscope: In ventral pancreas of Group ⅰ and ⅱ a and the dorsal and ventral pancreas of Group ⅱ b, the rough endoplasmic reticulum of the acinar cells showed granules-scaling, fusion and dilatation. 电镜:Ⅰ、Ⅱa组腹胰和Ⅱb组背、腹胰腺细胞粗内质网脱颗粒、融合和扩张。
In ventral pancreas of Group I and IIa and the dorsal. 酶原颗粒减少,线粒体肿张。Ⅰ和Ⅱa组背胰及Ⅲ组背、腹胰未见异常。
In embryonic development, liver and pancreas develop from the ventral foregut endoderm at a similar time. The developmental homology decides that there is the similarity in controlling the cell proliferation and differentiation in the liver and pancreas. 在个体发育过程中,肝脏和胰腺都起源于前肠末端,发育上的同源性提示肝脏和胰腺在细胞增殖和分化调控等方面有很高的相似性。