Cytogenetic, molecular genetic and pathological analyses in 126 meningiomas

Ronald H. Lekanne Deprez, Peter H. Riegman, Ellen Van Drunen, Ursula L. Warringa-Kortenhorst, Nicole A. Groen, Stanislaw Z. Stefanko, Jan W. Koper, Cees J.J. Avezaat, Paul G.H. Mulder, Ellen C. Zwarthoff, Anne Hagemeijer*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

99 Citations (Scopus)

Abstract

In a series of 126 meningiomas, tumor and patient characteristics were investigated and statistically analyzed. A combined cytogenetic and molecular genetic approach was used to study chromosomal abnormalities and loss of markers on chromosome 22q. This approach was successfully applied to 93 meningiomas. In 66 cases, complete or partial loss of chromosome 22 was observed and in at least 12 of them this chromosome was involved in structural aberrations. In addition to chromosome 22 changes, chromosomes 1,6, 11, 13, 14, 18, 19, X, and Y were also frequently involved in structural and numerical aberrations. Statistical analysis revealed a significant association between the number of chromosomal abnormalities and tumor grade. Complex karyotypes predominated in the group of grade II/III meningiomas. Furthermore, other variables showed statistically (or marginally statistically) significant differences. Meningiomas from the convexity were more often grade II/III, displayed predominantly (partial) loss of chromosome 22 and had complex karyotypes more often. These features were frequently found in meningiomas from males. Base meningiomas, on the other hand, occurred more often in females; they were usually grade I, showed loss of (parts of) chromosome 22 less often and displayed fewer additional chromosomal abnormalities.

Original languageEnglish
Pages (from-to)224-235
Number of pages12
JournalJournal of Neuropathology and Experimental Neurology
Volume54
Issue number2
DOIs
Publication statusPublished - Mar 1995

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