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====Grade II==== | ====Grade II==== | ||
* | =====Invasive===== | ||
*Invades the brain. | |||
* | |||
* | Images: | ||
*Chordoid | *[http://moon.ouhsc.edu/kfung/jty1/Composites/FNA0IE18-Meningioma-Invasion.htm Meningioma with brain invasion (ouhsc.edu)]. | ||
** | |||
=====Clear cell===== | |||
Epidemiology: | |||
*Usu. spinal cord.<ref>{{Ref PSNP|200}}</ref> | |||
Microscopic: | |||
*Clear cells - contain glycogen (PAS +ve). | |||
=====Chordoid===== | |||
*Chordoma-like. | |||
Microscopic: | |||
*Myxoid appearance. | |||
Image: | |||
*[http://frontalcortex.com/?page=oll&topic=24&qid=914 Chordoid meningioma (frontalcortex.com)]. | |||
====Grade III==== | ====Grade III==== |
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