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Ependymal rosettes (ependymoma)

Changed by Bruno Di Muzio, 3 Feb 2015

Updates to Synonym Attributes

Updates to Synonym Attributes

Updates to Article Attributes

Title was changed:
Ependymal rosettesrosette
Body was changed:

Ependymal rosette corresponds to an histologic architectural pattern that provides strong evidence of ependymal differentiation (ependymoma). It is characterised by a halo or spoke-wheel arrangement of cells surrounding an empty tubule lumen.

It must be differentiated from:

  • Homer Wright rosette: central lumen filled with fiber-like processes
  • Flexner-Wintersteiner rosette: central lumen contains small cytoplasmic extensions of the encircling cells
  • Perivascular pseudorosette: cells surrounding a centrally native vessel 
  • Pineocytomatous and Neurocytic rosettes:  generally larger and more irregular in contour
  • -<p><strong>Ependymal rosette</strong> corresponds to an histologic architectural pattern that provides strong evidence of ependymal differentiation (<a title="Ependymoma" href="/articles/ependymoma">ependymoma</a>). It is characterised by a halo or spoke-wheel arrangement of cells surrounding an empty tubule lumen.</p>
  • +<p><strong>Ependymal rosette</strong> corresponds to an histologic architectural pattern that provides strong evidence of ependymal differentiation (<a href="/articles/ependymoma">ependymoma</a>). It is characterised by a halo or spoke-wheel arrangement of cells surrounding an empty tubule lumen.</p><p>It must be differentiated from:</p><ul>
  • +<li>Homer Wright rosette: central lumen filled with fiber-like processes</li>
  • +<li>Flexner-Wintersteiner rosette: central lumen contains small cytoplasmic extensions of the encircling cells</li>
  • +<li>Perivascular pseudorosette: cells surrounding a centrally native vessel </li>
  • +<li>Pineocytomatous and Neurocytic rosettes:  generally larger and more irregular in contour</li>
  • +</ul>

References changed:

  • 1. Wippold FJ, Perry A. Neuropathology for the neuroradiologist: rosettes and pseudorosettes. AJNR Am J Neuroradiol. 2006;27 (3): 488-92. <a href="http://www.ncbi.nlm.nih.gov/pubmed/16551982">Pubmed citation</a><span class="auto"></span>

Sections changed:

  • Pathology

Systems changed:

  • Central Nervous System
Images Changes:

Image ( create )

Image ( create )

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