rhabdoid meningioma

Pathology

• aggressive clinical course
• corresponds histologically to WHO grade III.

Microscopic pathology

• patches or extensive sheets of rhabdoid cells - rounded tumor cells with eccentric nuclei, often prominent nucleolus, prominent inclusion-like eosinophilic cytoplasm with whorled intermediate filaments
• high proliferative indices (most)
• additional histologic features of malignancy (most)

More general terms

• meningioma