The latter feature is much less frequently seen in ependymomas and is characterized by clusters of ependymal cells
arranged around a lumen with some resemblance to the central canal of the spinal cord.
In our study, when spinal cord injury and melatonin group were compared, ependymal cells
showed regular distribution around the canalis centralis, mild hypertrophy in the cells and intense and regular distribution of nerve fibrils in the bipolar appearance of the funicular cells.
Mild lymphocytic perivascular cuffing and loss of Purkinje cells were observed in the cerebrum and cerebellum, and virus antigen was detected in ependymal cells
and epithelium of the choroid plexus and in cerebellar Purkinje cells.
Barbe, "Selective tropism of a neurotropic coronavirus for ependymal cells
, neurons, and meningeal cells," Journal of Virology, vol.
These tumors arise from the ependymal cells
of the central canal; hence, they are located centrally, as opposed to the eccentric location of astrocytomas (Table 2).
Choroid plexus and ependymal cells
are quite similar, with the latter showing more "degenerative" cytologic features and fewer cellular clusters.
The SVZ have five main cell types: B1 astrocytes (type B1 cells), B2 astrocytes (type B2 cells), transit-amplifying cells (type C cells), neuroblasts (type A cells), and ependymal cells
(type E cells) (Figure 1).
Immunohistologic analysis confirmed systemic infection and revealed influenza virus nucleocapsid protein in 1) ganglions of the adrenal medulla, 2) ependymal cells
of the central nervous system (associated with marked lymphocytic meningitis and perivascular cuffing), 3) thymus epithelia, and 4) epithelia of the exocrine pancreas (Figure 1).
Based on the previous studies, morphine causes a delay in the development of neural tube, cerebellum, brain cavities, and the ependymal cells
in the choroid plexus area of the nervous system [8-11].
Both spindle cells and ependymal cells
were positive for vimentin.
There are four cell types found in this region: the ependymal cells
(Ep) line the ventricle and separate the cerebrospinal fluid from the SVZ.
The 3rd ventricle lined with simple layer of cuboidal ependymal cells