PMID- 11398839 OWN - NLM STAT- MEDLINE DCOM- 20010628 LR - 20190513 IS - 0022-3069 (Print) IS - 0022-3069 (Linking) VI - 60 IP - 6 DP - 2001 Jun TI - Chromosome 1p and 14q FISH analysis in clinicopathologic subsets of meningioma: diagnostic and prognostic implications. PG - 628-36 AB - The second most frequently reported genetic abnormalities in meningiomas after 22q loss are deletions of 1p and 14q. To assess the potential diagnostic and prognostic utility of these chromosomal alterations, we studied 180 well-characterized meningiomas using dual-color fluorescence in situ hybridization (FISH) with DNA probes localized to 1p32, 1p36, 14q13, and 14q32. Our cohort consisted of 77 benign (grade I), 74 atypical (grade II), and 29 anaplastic (grade III) meningiomas. Benign and atypical meningiomas were further stratified into subsets of recurring (despite gross total resection) vs non-recurring (at least 10 yr of follow-up) and mitotically active vs brain invasive subsets, respectively. Losses of 1p and 14q losses were identified in 23% and 31% of benign, 56% and 57% of atypical, and 75% and 67% of anaplastic meningiomas, respectively (p < 0.001 for 1p; p = 0.004 for 14q). Combined 1p/14q deletions were encountered in 7% benign. 39% atypical, and 63% anaplastic meningiomas (p < 0.001). Benign non-recurring meningiomas were less likely to harbor 14q deletions than recurring examples (17% vs 50%, p = 0.013). There was a trend for anaplastic meningiomas with 14q deletions and atypical meningiomas with combined 1p/14q deletions to have poorer overall survivals, though neither reached statistical significance. We conclude that 1p and 14q deletions are highly associated with increasing histologic grade and play an important role in meningioma tumor progression. Furthermore, 14q FISH analysis may aid in assessing recurrence risk in histologically benign meningiomas. FAU - Cai, D X AU - Cai DX AD - Department of Pathology, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA. FAU - Banerjee, R AU - Banerjee R FAU - Scheithauer, B W AU - Scheithauer BW FAU - Lohse, C M AU - Lohse CM FAU - Kleinschmidt-Demasters, B K AU - Kleinschmidt-Demasters BK FAU - Perry, A AU - Perry A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Neuropathol Exp Neurol JT - Journal of neuropathology and experimental neurology JID - 2985192R SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Child MH - *Chromosomes, Human, Pair 1 MH - *Chromosomes, Human, Pair 14 MH - Cohort Studies MH - Female MH - Gene Deletion MH - Humans MH - In Situ Hybridization, Fluorescence MH - Magnetic Resonance Imaging MH - Male MH - Meningeal Neoplasms/*genetics MH - Meningioma/*genetics MH - Middle Aged MH - Neoplasm Invasiveness MH - Neoplasm Recurrence, Local MH - Prognosis EDAT- 2001/06/12 10:00 MHDA- 2001/06/29 10:01 CRDT- 2001/06/12 10:00 PHST- 2001/06/12 10:00 [pubmed] PHST- 2001/06/29 10:01 [medline] PHST- 2001/06/12 10:00 [entrez] AID - 10.1093/jnen/60.6.628 [doi] PST - ppublish SO - J Neuropathol Exp Neurol. 2001 Jun;60(6):628-36. doi: 10.1093/jnen/60.6.628.