Meizner I, Levi A, Katz M, Maor E
Department of Obstetrics and Gynecology, Soroka Medical Center, Beer-Sheva, Israel.
J Reprod Med. 1992 Oct;37(10):885-8.
Prenatal ultrasound diagnosed iniencephaly apertus at 21 weeks' gestation. In this rare central nervous system (CNS) malformation the brain and neck show the main pathologies. Retroflexion of the head with exaggerated cervicothoracic lordosis is always present, and CNS malformations in the form of anencephaly, spina bifida and encephalocele are often present. The ultrasonic diagnosis should be based on the finding of extreme dorsiflexion of the head accompanied by an abnormally short and deformed spine.
产前超声在孕21周时诊断出开放性脊柱裂无脑儿。在这种罕见的中枢神经系统（CNS）畸形中，脑和颈部呈现主要病变。头部后屈伴颈椎胸椎过度前凸总是存在，并且无脑儿、脊柱裂和脑膨出形式的中枢神经系统畸形也常常存在。超声诊断应基于发现头部极度背屈并伴有异常短且变形的脊柱。
