Gray D L, Martin C M, Crane J P
Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO 63110.
J Ultrasound Med. 1989 May;8(5):255-8. doi: 10.7863/jum.1989.8.5.255.
Documentation of early fetal developmental events has become possible with the use of high-resolution sonography. We report two cases of first trimester physiologic bowel herniation and contrast them with a first trimester diagnosis of omphalocele. The normal development of the fetal abdominal wall and the mechanisms proposed for pathogenesis of omphalocele are reviewed. The sonographic differentiation between physiologic herniation and pathologic ventral wall defects may be very subtle, making definitive first trimester diagnosis difficult.
随着高分辨率超声检查的应用，记录早期胎儿发育事件已成为可能。我们报告了两例孕早期生理性肠疝病例，并将它们与孕早期诊断的脐膨出进行对比。本文回顾了胎儿腹壁的正常发育以及脐膨出发病机制的相关假说。生理性疝与病理性腹壁缺损之间的超声鉴别可能非常细微，这使得孕早期做出明确诊断很困难。
