Mühler Matthias R, Hartmann Christian, Werner Walter, Meyer Oliver, Bollmann Rainer, Klingebiel Randolf
Department of Radiology, Charité-Universtitätsmedizin Berlin, Berlin, Germany.
Pediatr Radiol. 2007 Apr;37(4):391-5. doi: 10.1007/s00247-007-0419-z. Epub 2007 Feb 8.
We report a fetus of 28 weeks' gestation in which ultrasonography demonstrated unilateral ventriculomegaly and microcephaly. Fetal MRI demonstrated a simple, left paramedian occipital cyst with rarefaction of the corpus callosum and thinning of the adjacent cortical mantle. Ischaemia was suggested as the underlying pathogenesis, but autopsy after termination of pregnancy revealed a glioependymal cyst. This case highlights consideration of the rare diagnosis of glioependymal cyst when a cystic lesion associated with cerebral malformations, particularly dysgenesis of the corpus callosum, is demonstrated and fetal MRI suggests an ischaemic origin.
我们报告了一例孕28周的胎儿，超声检查显示单侧脑室扩大和小头畸形。胎儿磁共振成像（MRI）显示一个单纯的左枕叶旁正中囊肿，伴有胼胝体稀疏和相邻皮质层变薄。推测潜在发病机制为缺血，但终止妊娠后的尸检显示为室管膜胶质囊肿。当发现与脑畸形相关的囊性病变，特别是胼胝体发育不全，且胎儿MRI提示缺血性起源时，该病例强调了对室管膜胶质囊肿这一罕见诊断的考虑。
