Department of Pathology,
University of Oklahoma Health Sciences Center
Meningioma (WHO Grade I/IV)
Click on thumbnails to see enlarged pictures.
Meningiomas have many morphologic patterns. Here are
the more common ones.
- Panel A and B are taken from the same tumor: The
tumor cells arrange in concentric whorls which resemble normal arachnoid
granulation. Pseudonuclear inclusion (a bag of cytoplasm that protrudes into
the nucleus) is a common finding in meningioma (arrow).
- Panel C: Psammoma body (the red-purple round
body) are calcified bodies that are often found in meningioma.
- Panel D: In the fibroblastic type of meningioma,
the cells are spindle shaped and resemble fibroblasts.