Iwasaki I, Yu T J, Itahashi K, Nito A, Yamaguchi H, Onoki J
Acta Pathol Jpn. 1986 Apr;36(4):565-9. doi: 10.1111/j.1440-1827.1986.tb01045.x.
An extremely rare abnormality, a variant of omphalomesenteric duct, was observed in the umbilical cord 1 cm from the entry point into the abdominal wall, which itself was as an isolated mass of well-formed intestinal tissue free of structural defects. This intestinal tissue seems to be the remnant of an intestinal loop from caudal limb of midgut following physiological herniation during the third month of gestation.
在距腹壁入口点1厘米处的脐带中观察到一种极其罕见的异常情况，即卵黄管变异，其本身是一个孤立的、结构完整且无结构缺陷的肠组织团块。这种肠组织似乎是妊娠第三个月生理性疝出后中肠尾端肠袢的残余部分。
