====== Middle frontal gyrus ====== {{ ::middle_frontal_gyrus.png?300|}} {{rss>https://pubmed.ncbi.nlm.nih.gov/rss/search/12UQ-02Q1yBeOLPFkYfzK0qCDDLqFMYXY1e-YxDJNeNiyD2kvg/?limit=15&utm_campaign=pubmed-2&fc=20230502123804}} ---- ---- The middle frontal [[gyrus]] (MFG) is usually more sinuous than the [[inferior frontal gyrus]] or [[superior frontal gyrus]] and it often connects to the [[precentral gyrus]] via a thin [[isthmus]] ((Naidich TP. MR [[Imaging]] of [[Brain]] [[Surface]] [[Anatomy]]. [[Neuroradiology]]. 1991; 33:S95–S99)) The middle [[frontal gyrus]] makes up about one-third of the [[frontal lobe]] of the human brain. The middle frontal gyrus, like the inferior frontal gyrus and the superior frontal gyrus, is more of a [[region]] than a true gyrus. The borders of the middle frontal gyrus are the [[inferior frontal sulcus]] below; the [[superior frontal sulcus]] above, and the [[precentral sulcus]] behind. The middle frontal gyrus is frequently divided longitudinally by the intermediate sulcus. The surgeon should not confuse the intermediate sulcus with the [[superior frontal sulcus]] or [[inferior frontal sulcus]]. The inferior frontal sulcus is often interrupted, so the surgeon performing a subpial tumor dissection in the middle frontal gyrus may inadvertently wander into the inferior frontal gyrus. A break in the inferior frontal sulcus over the [[pars triangularis]] allows the surgeon to remove a middle frontal lesion to wander into [[Broca’s area]]. The middle frontal gyrus is comparable with the Broca area in its ability to determine hemispheric dominance for [[language]] using [[resting-state functional magnetic resonance imaging]]. Results suggest the addition of resting-state fMRI of the middle frontal gyrus to the list of noninvasive modalities that could be used in patients with [[glioma]]s to evaluate hemispheric dominance of language before tumor resection. In patients who cannot participate in traditional task-based [[fMRI]], resting-state fMRI offers a task-free alternate to pre surgically map the [[eloquent]] cortex ((Gohel S, Laino ME, Rajeev-Kumar G, Jenabi M, Peck K, Hatzoglou V, Tabar V, Holodny AI, Vachha B. Resting-State Functional Connectivity of the Middle Frontal Gyrus Can Predict Language Lateralization in Patients with Brain Tumors. AJNR Am J Neuroradiol. 2019 Feb;40(2):319-325. doi: 10.3174/ajnr.A5932. Epub 2019 Jan 10. PubMed PMID: 30630835; PubMed Central PMCID: PMC6375738. )). ===== Right Middle Frontal Gyrus ===== see [[Right Middle Frontal Gyrus]]. ===== Left middle frontal gyrus ===== see [[Left middle frontal gyrus]]. ===== Approaches ===== see [[Middle frontal gyrus approach]]. ===== References =====