16) There is also one report, to our knowledge, of a fourth ventricle neurocytoma with both lipomatous and ependymal differentiation.
Complementary DNA expression analysis revealed similarities to central neurocytoma and distinct differences from classic medulloblastoma.
The final pathology report indicated a central neurocytoma
(CN), WHO grade II.
Staining with GFAP can be focally positive in other CCTs, and additional studies will be necessary, such as in the case of neurocytoma
Additionally, the assessment of these chromosomal rearrangements is helpful in the diagnostic distinction between oligodendroglioma and some of its mimics, like small cell glioblastoma, central neurocytoma
, and DNET.
of temporal lobe with glial differentiation.
is usually distinguishable from oligodendroglioma based on the location (usually intraventricular in neurocytomas
4) Therefore, close follow-up is warranted for any neurocytoma
that demonstrates either atypical histologic features or elevated proliferation indices.
This finding is rare in neuroectodermal tumors, and only a few cases of medulloblastomas,[9,10,19] 3 cases of ependymomas, 2 cases of central neurocytoma
,[20,21] 1 case of intraspinal low-grade astrocytoma, and I case of cerebral PNET have been reported to contain adipose tissue?
In 1997, Kim and Suh reported a case of a pseudopapillary neurocytoma
arising in the temporal lobe of a 25-year-old man that presumably demonstrated areas of glial differentiation.
38) The central neurocytomas
(Figure 27) were thought to characteristically show globular calcifications.
12-16] We have previously shown that this structural protein is expressed in neuronal/neuroblastic tumors, such as cerebellar medulloblastomas,[17-20] retinoblastomas, central neurocytomas
, olfactory neuroblastomas, sympathoadrenal neuroblastomas, and adrenal pheochromocytomas, as well as in neuronal/neuroblastic tumor cell lines.