There are 2 embryologic hypotheses for annular pancreas.One indicates a process of fixation of the tip of the ventral pancreatic bud to the duodenum before the axis rotation.

 
  • 关于环状胰腺的胚胎学说有2个,一种学说认为在胚胎发育过程中,在轴旋转前腹侧胰始基尖端已固定于十二指肠。
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