Department of Obstetrics and Gynecology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA.
J Clin Ultrasound. 2021 Jun;49(5):502-505. doi: 10.1002/jcu.22943. Epub 2020 Nov 13.
Absent cavum septum pellucidum in the fetus is a common condition that may be associated with a variety of associated abnormalities. Herein, we present a case to emphasize a new pitfall in the differential diagnosis of the absence of the cavum septum pellucidum (CSP). Prenatal ultrasound views were concerning for partially absent CSP in the third trimester and subependymal pseudocysts (SEC) after a normal CSP visualization in the second trimester. The postnatal MRI demonstrated a normal corpus callosum, normal gyration, normal opthalmic nerves, and isolated SEC blocking the views of cavum septum pellucidum.
胎儿透明隔腔缺失是一种常见的情况，可能与多种相关的异常有关。在此，我们报告一例病例，强调了在透明隔腔缺失（CSP）的鉴别诊断中一个新的陷阱。产前超声检查在孕晚期发现部分透明隔腔缺失，在孕中期正常透明隔腔显示后发现室管膜下假性囊肿（SEC）。产后 MRI 显示胼胝体正常、脑回正常、视神经正常，孤立的 SEC 阻塞了透明隔腔的视野。
