ArticleAJNR. American journal of neuroradiology2015
Chordoid Meningioma: Differentiating a Rare World Health Organization Grade II Tumor from Other Meningioma Histologic Subtypes Using MRI.
Article in AJNR. American journal of neuroradiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 28 citations in OpenAlex.
- Intracranial meningiomas at a tertiary hospital: Spectrum of MRI findings with histopathologic correlation.SA journal of radiology · 2024Article
- Intracranial intricacies: Comprehensive analysis of rare skull base meningiomas-A single-center case series.Clinical case reports · 2024Article
- Unilateral Orbitopathy Caused by Skull Base Chordoid Meningioma.Diagnostics (Basel, Switzerland) · 2023Article
- Progestin-related WHO grade II meningiomas behavior-a single-institution comparative case series.Neurosurgical review · 2022Article
- Preoperative Apparent Diffusion Coefficient Values for Differentiation between Low and High Grade Meningiomas: An Updated Systematic Review and Meta-Analysis.Diagnostics (Basel, Switzerland) · 2022Review
- Utility of multiparametric pre-operative magnetic resonance imaging in differentiation of chordoid meningioma from the other histopathological subtypes of meningioma-a retrospective study.Neuroradiology · 2022Article
- Preoperative MR Imaging to Differentiate Chordoid Meningiomas from Other Meningioma Histologic Subtypes.AJNR. American journal of neuroradiology · 2019Article
- Imaging spectrum of meningiomas: a review of uncommon imaging appearances and their histopathological and prognostic significance.Polish journal of radiology · 2019Review
- Uncommon Cranial Meningioma: Key Imaging Features on Conventional and Advanced Imaging.Clinical neuroradiology · 2017Review
- Variants of meningiomas: a review of imaging findings and clinical features.Japanese journal of radiology · 2016Review
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Authors and funding
6 authors at 4 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
background and purposeMeningiomas are very commonly diagnosed intracranial primary neoplasms, of which the chordoid subtype is seldom encountered. Our aim was to retrospectively review preoperative MR imaging of intracranial chordoid meningiomas, a rare WHO grade II variant, in an effort to determine if there exist distinguishing MR imaging characteristics that can aid in differentiating this atypical variety from other meningioma subtypes. MATERIALS AND
methodsTen cases of WHO grade II chordoid meningioma were diagnosed at our institution over an 11-year span, 8 of which had preoperative MR imaging available for review and were included in our analysis. Chordoid meningioma MR imaging characteristics, including ADC values and normalized ADC ratios, were compared with those of 80 consecutive cases of WHO grade I meningioma, 21 consecutive cases of nonchordoid WHO grade II meningioma, and 1 case of WHO grade III meningioma.
resultsPreoperative MR imaging revealed no significant differences in size, location, signal characteristics, or contrast enhancement between chordoid meningiomas and other meningiomas. There were, however, clear differences in the ADC values and normalized ADC ratios, with a mean absolute ADC value of 1.62 ± 0.33 × 10(-3) mm(2)/s and a mean normalized ADC ratio of 2.22 ± 0.47 × 10(-3) mm(2)/s in chordoid meningiomas compared with mean ADC and normalized ADC values, respectively, of 0.88 ± 0.13 × 10(-3) mm(2)/s and 1.17 ± 0.16 × 10(-3) mm(2)/s in benign WHO grade I meningiomas, 0.84 ± 0.11 × 10(-3) mm(2)/s and 1.11 ± 0.15 × 10(-3) mm(2)/s in nonchordoid WHO grade II meningiomas, and 0.57 × 10(-3) mm(2)/s and 0.75 × 10(-3) mm(2)/s in the 1 WHO grade III meningioma.
conclusionsChordoid meningiomas have statistically significant elevations of ADC and normalized ADC values when compared with all other WHO grade I, II, and III subtypes, which enables reliable preoperative prediction of this atypical histopathologic diagnosis.
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