"GFAP and S100 markers are often positive due to its neuroepithelial lining."
"On imaging, these cysts are essentially indistinguishable from other intraventricular simple cysts (e.g. intraventricular arachnoid cysts)."
"It is thought to arise from sequestration of developing neuroectoderm during embryogenesis. They are thin-walled and contain clear serous fluid secreted by the lining ependyma 1. They are most commonly located deep in the parenchyma, although intraventricular, periventricular and subarachnoid space cysts have also been reported 2. Ependymal cysts have been postulated to be the entity responsible for the interhemispheric cysts with the Dandy-Walker malformations and agenesis of the corpus callosum."
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