During fetal development, abnormal openings may occur in the pericecal, small bowel, transverse colon, or sigmoid mesentery, as well as the omentum, leading to mesenteric hernias.
Protein C or protein S deficiency is also sometimes suspected when a venous thromboembolism develops in an unusual site like the portal, mesenteric, or cerebral veins.
育阶段，这
的裂隙可能
旁、
结
。
成，包括脾
肿瘤
栓栓塞出现在不常见的部位时，也要怀疑蛋白C或蛋白S缺乏症，比如
