ependyma


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Words related to ependyma

thin epithelial membrane lining the ventricles of the brain and the spinal cord canal

References in periodicals archive ?
Netsky, "Neuroepithelial (colloid) cysts: pathogenesis and relation to choroid plexus and ependyma," Archives of pathology, vol.
Imageandpathologicalobservation: Allimageswere reviewed by two experienced neuroimaging doctors to observe MRI signal characteristics, location, form and size of tumor, boundary peritumoral edema, existence of necrosis, cystic change, haemorrhage and calcification, enhancement degree, mass effect and whether tumor involved ependyma and pia mater.
The presence of ventriculitis is seen as enhancement of the ependyma. On the CT scan, SDE appears as a hypodense or isodense crescentic or lenticular area adjacent to the inner table of the skull (Fig.
Aquaporin 4 is expressed in supporting cells, such as astrocytes and ependyma, especially in the interface between major fluid compartments and brain parenchyma, but it is not expressed in neurons.
An increase in CSF AQP4 in hydrocephalus is reported in a previous work [5] and this may occur as a consequence of the loss of communication between ependyma and subsequent cell disruption; thus AQP4 would pass into the CSF [5].
Pathologic changes in cases of PAM are extensive damage to brain parenchyma, ependyma and meninges.
Three major isoforms of GLUTs are considered important for glucose delivery to brain cells: GLUT1 is the primary glucose transporter in the blood-brain barrier, choroid plexus, ependyma, and glial cells and is not sensitive to insulin; GLUT3 is the predominant glucose transporter in neurons; GLUT5 is highly expressed in microglia [47].
Haugland, "A stereological study of the ependyma of the mouse spinal cord.
Risk factors for cerebrospinal fluid (CSF) dissemination include direct invasion of the ependyma, fissuring of the ependyma secondary to hydrocephalus, fragmentation of tumour in contact with CSF, and surgical intervention.
They may circulate freely throughout the cerebrospinal fluid (CSF) pathways or become attached to the ependyma anywhere in the ventricles, but their predilection is for the occipital horn of the lateral ventricles and fourth ventricle.
Hydrogen peroxide at a concentration used during neurosurgery disrupts ciliary function and causes extensive damage to the ciliated ependyma of the brain.
In 2005, Wang and coworkers (1) described a report of 8 cases of a superficial cerebral tumor with elements of both ependyma and astrocytoma and marked by an angiocentric growth pattern.