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| ==Embryonal tumour with abundant neuropil and true rosettes== | | ==Embryonal tumour with abundant neuropil and true rosettes== |
| *Abbreviated ''ETANTR''. | | *Abbreviated ''ETANTR''. |
| ===General===
| | {{Main|Embryonal tumour with abundant neuropil and true rosettes}} |
| *Super rare.
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| *Reported only in children <4 years old.<ref name=pmid16551982/>
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| ===Microscopic===
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| Features:<ref name=pmid20499240>{{Cite journal | last1 = Ferri Niguez | first1 = B. | last2 = Martínez-Lage | first2 = JF. | last3 = Almagro | first3 = MJ. | last4 = Fuster | first4 = JL. | last5 = Serrano | first5 = C. | last6 = Torroba | first6 = MA. | last7 = Sola | first7 = J. | title = Embryonal tumor with abundant neuropil and true rosettes (ETANTR): a new distinctive variety of pediatric PNET: a case-based update. | journal = Childs Nerv Syst | volume = 26 | issue = 8 | pages = 1003-8 | month = Aug | year = 2010 | doi = 10.1007/s00381-010-1179-x | PMID = 20499240 }}</ref>
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| *[[Small round blue cell tumour]].
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| *True rosettes = flower-like cluster of cells that surrounds a space.<ref name=pmid16551982>{{cite journal |author=Wippold FJ, Perry A |title=Neuropathology for the neuroradiologist: rosettes and pseudorosettes |journal=AJNR Am J Neuroradiol |volume=27 |issue=3 |pages=488–92 |year=2006 |month=March |pmid=16551982 |doi= |url=}}</ref>
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| *Fibrillary neuropil.
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| **Meshwork of fibers.
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| DDx:
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| *[[Primitive neuroectodermal tumour]].
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| *[[Medulloblastoma]]. (???)
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| Images:
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| *[http://path.upmc.edu/cases/case585.html ETANTR - several images (upmc.edu)].
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| *[http://path.upmc.edu/cases/case666.html ETANTR - another case (upmc.edu)].
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| ==CNS lymphoma== | | ==CNS lymphoma== |