ArticleEuropean radiology2023
Effect of tumor genetics, pathology, and location on fMRI of language reorganization in brain tumor patients.
Article in European radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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10 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Gut-brain axis and neuroplasticity in health and disease: a systematic review.La Radiologia medica · 2025Pooled it
- Identification of abnormal neural language networks by reading "brainprints" in patients with brain tumors.Neuroimage. Reports · 2026Article
- Disrupted dynamics of transient brain states in patients with brain tumors: a co-activation pattern analysis of resting-state fMRI.La Radiologia medica · 2026Article
- Resting-State Coactivation Patterns of Language Reorganization in Brain Tumors.Neural plasticity · 2026Article
- Intraoperative Language mapping in a Japanese-English-French trilingual patient with a left Temporal lobe glioma: a case report.Brain structure & function · 2025Article
- Cognitive Control Network and Language Reorganization in Patients with Brain Tumors.AJNR. American journal of neuroradiology · 2025Article
- Neuroplasticity in Diffuse Low-grade Gliomas: Backward Modelling of Brain-tumor Interactions Prior to Diagnosis is Needed to Better Predict Recovery after Treatment.Current neurology and neuroscience reports · 2025Review
- Left-hemisphere glioma drives systematic patterns of contralesional functional connectivity.Brain communications · 2025Article
- Association of Lack of Speech Arrest During Cortical Stimulation With Interhemispheric Reorganization of the Functional Language Network in Patients With Brain Tumors.AJR. American journal of roentgenology · 2023Article
- Talking about speaking: what do we know about language reorganization in brain tumors before surgery.European radiology · 2023Article
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9 authors at 3 institutions in 3 countries.
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Abstract
objectivesLanguage reorganization may follow tumor invasion of the dominant hemisphere. Tumor location, grade, and genetics influence the communication between eloquent areas and tumor growth dynamics, which are drivers of language plasticity. We evaluated tumor-induced language reorganization studying the relationship of fMRI language laterality to tumor-related variables (grade, genetics, location), and patient-related variables (age, sex, handedness).
methodsThe study was retrospective cross-sectional. We included patients with left-hemispheric tumors (study group) and right-hemispheric tumors (controls). We calculated five fMRI laterality indexes (LI): hemispheric, temporal lobe, frontal lobe, Broca's area (BA), Wernicke's area (WA). We defined LI ≥ 0.2 as left-lateralized (LL) and LI < 0.2 as atypical lateralized (AL). Chi-square test (p < 0.05) was employed to identify the relationship between LI and tumor/patient variables in the study group. For those variables having significant results, confounding factors were evaluated in a multinomial logistic regression model.
resultsWe included 405 patients (235 M, mean age: 51 years old) and 49 controls (36 M, mean age: 51 years old). Contralateral language reorganization was more common in patients than controls. The statistical analysis demonstrated significant association between BA LI and patient sex (p = 0.005); frontal LI, BA LI, and tumor location in BA (p < 0.001); hemispheric LI and fibroblast growth factor receptor (FGFR) mutation (p = 0.019); WA LI and O6-methylguanine-DNA methyltransferase promoter (MGMT) methylation in high-grade gliomas (p = 0.016).
conclusionsTumor genetics, pathology, and location influence language laterality, possibly due to cortical plasticity. Increased fMRI activation in the right hemisphere was seen in patients with tumors in the frontal lobe, BA and WA, FGFR mutation, and MGMT promoter methylation. KEY POINTS: • Patients harboring left-hemispheric tumors present with contralateral translocation of language function. Influential variables for this phenomenon included frontal tumor location, BA location, WA location, sex, MGMT promoter methylation, and FGFR mutation. • Tumor location, grade, and genetics may influence language plasticity, thereby affecting both communication between eloquent areas and tumor growth dynamics. • In this retrospective cross-sectional study, we evaluated language reorganization in 405 brain tumor patients by studying the relationship of fMRI language laterality to tumor-related variables (grade, genetics, location), and patient-related variables (age, sex, handedness).
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