General
and Systemic Histopathology, C601&C602
Slide 38: Meningioma
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Be sure you identify
the dura itself in this slide. Then look to the tumor. Even
in this magnification we can see clusters of whirls of the tumor cells
and if you have really good eyes you might be able to detect the pink "sand"
of the psammoma bodies.
See this slide with the
virtual microscope. |
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This lesion is benign
and might be considered the "fibroma" of the coverings of the central nervous
system. Note the long spindly cells grouped in whirl like clusters. On
low and medium power, you may be able to appreciate an interdigitating
pattern to these groups. You should see many curious little calcium concretions
often associated with this type of tumor; the psammoma body. These are
sometimes sufficiently numerous to be seen on X-Ray. Can you think of another
tumor we have studied this year in which these little calcium concretions
were seen? Hint: think endocrine. |
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