At the region where the wall of the hemisphere is attached to the roof of the diencephalon, the wall of the telencephalon is thin, formed of a single layer of ependymal
cells covered by vascular mesenchyme, and together they form the choroid plexus of the lateral ventricle (Fig.
Identity crisis for adult periventricular neural stem cells: subventricular zone astrocytes, ependymal
cells or both?
GFP was visualized in ependymal
and adjacent cells at 24 h postinjection.
Kanat et al., "Uncovering a new cause of obstructive hydrocephalus following subarachnoid hemorrhage: choroidal artery vasospasm-related ependymal
cell degeneration and aqueductal stenosis--first experimental study," World Neurosurgery, vol.
Simard, "Inflammation of the choroid plexus and ependymal
layer of the ventricle following intraventricular hemorrhage," Translational Stroke Research, vol.
Pyogenic ventriculitis is an inflammation of the ciliated ependymal
lining of the brain's ventricles, leading to an accumulation of pus within the ventricles themselves .
Ernemann et al., "Extradural ependymal
tumor with myxopapillary and ependymoblastic differentiation in a case of Schinzel-Giedion syndrome," Acta Neuropathologica, vol.
(c) CE FLAIR view in similar slice location as in (a) three weeks later showing complete subsidence of ependymal
contrast-enhancement (white arrow) and disappearance of the fluid-fluid levels (black arrow).
Mehdorn, "Congenital diffuse anaplastic astrocytoma with ependymal
and leptomeningeal spread: case report," Journal of Neuro-Oncology, vol.
nature of these curious neoplastic cells was also not evident; however, we incidentally came across some canalicular formations lined by ciliated cylindrical cells exhibiting the same vacuolative changes as the signet-ring-like ones (Figure 2(e)).
An immunohistological examination revealed that the specimen lacked arachnoid and ependymal
cells (recognized as epithelial membrane antigen- (EMA-) positive cells) as well as glia cells (recognized as glial fibrillary acidic protein(GFAP-) positive cells).
This revealed a rounded, heterogeneous, soft tissue mass with central calcifications opposing the ependymal
surface in the ventral body of the right lateral ventricle measuring approximately 12 mm x 18 m.