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.

在育阶段，这种异常的裂隙可能生在盲肠旁、小肠、横结肠乙状结肠和网膜，造成肠系膜疝。

Abstract： Objective To evaluate bladder encapsulation with sigmoid muscular flap for the treatment of detrusor underactivity.

摘 要： 目的 介绍一种治疗尿肌收缩无力的新术式--乙状结肠肌瓣包术。