Zarabi C M, Rupani M
Anat Rec. 1986 May;215(1):65-70. doi: 10.1002/ar.1092150110.
No satisfactory explanation for the absence of the ileocecal portion of the digestive system in the newborns with cloacal exstrophy has been offered previously. This is a report of such a case in which the lymphocytes and plasma cells were used as tissue markers to identify the origin of the lymphatic-rich ileocecal portion of the digestive tract. The absence of these cells, in this case demonstrated immunohistochemically, is suggestive of a dual origin of the midgut. Normal embryogenesis of the digestive system is reviewed and the possibility of participation of the allantois, in addition to the yolk sac, in the embryogenesis of the ileocecal segment of the gastrointestinal tract is discussed.
此前，对于泄殖腔外翻新生儿消化系统回盲部缺失的情况，尚无令人满意的解释。本文报告了这样一个病例，其中淋巴细胞和浆细胞被用作组织标记物，以确定富含淋巴的消化道回盲部的起源。在该病例中，通过免疫组织化学证实这些细胞的缺失提示中肠的双重起源。本文回顾了消化系统的正常胚胎发育过程，并讨论了除卵黄囊外，尿囊参与胃肠道回盲段胚胎发育的可能性。
