Ultrasound Research Today is a free monthly online journal that collates and summarizes the latest research about Ultrasound, including details on screening, diagnosis, pregnancy, detection.

Fetal MRI demonstrates glioependymal cyst in a case of sonographic unilateral ventriculomegaly.

Mühler MR, Hartmann C, Werner W, Meyer O, Bollmann R, Klingebiel R

Department of Radiology, Charité-Universtitätsmedizin Berlin, Berlin, Germany. matthias.muehler@charite.de

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.

Published 6 March 2007 in Pediatr Radiol, 37(4): 391-5.
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