• Medicina · Jan 2024

    Case Reports

    [Frontal aslant tract: Anatomy and implications in brain glioma neurosurgery].

    • Facundo Villamil, Catena BaudoMelanieMLaboratorio de Anatomía Viviente, Tercera Cátedra de Anatomía, Facultad de Medicina, Universidad de Buenos Aires (UBA), Argentina., Pablo S Paolinelli, Lucila Domecq, Andrés Cervio, and Mariana Bendersky.
    • Laboratorio de Neuroanatomía, Tercera Cátedra de Anatomía, Facultad de Medicina, Universidad de Buenos Aires (UBA), Argentina. E-mail: villamilfacundo@gmail.com.
    • Medicina (B Aires). 2024 Jan 1; 84 (3): 592596592-596.

    AbstractThe frontal aslant tract (FAT) connects the supplementary motor area (SMA) with the pars opercularis. Its role in language and its implications in glioma surgery remain under discussion. We present an anatomosurgical study of three cases with surgical resolution. Three patients with gliomas in the left frontal lobe were operated on using an awake patient protocol with cortical and subcortical mapping techniques, conducting motor and language evaluations. Tractography was performed using DSI Studio software. All three patients showed intraoperative language inhibition through subcortical stimulation of the FAT. Resection involving the FAT correlated with language deficits in all cases and movement initiation deficits in two cases. All patients recovered from their deficits at six months postoperatively. In conclusion, the tract has been successfully reconstructed, showing both anatomical and functional complexity, supporting the idea of its mapping and preservation in glioma surgery. Future interdisciplinary studies are necessary to determine the transient or permanent nature of the deficits.

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