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Middle Longitudinal Fasciculus in the Human Brain from Fiber Dissection

  • Igor Lima Maldonado
  • Ilyess Zemmoura
  • Christophe Destrieux
Chapter

Abstract

Although the middle longitudinal fasciculus (MdLF) is not part of the insular lobe, it penetrates the temporal operculum, which is manipulated or partially removed during surgical approaches to the insula. We present a comprehensive description of that fascicle and its anatomical relationships with neighboring structures that have been described in previous chapters. It has been hypothesized that MdLF plays a role in attention and language processing; however studies with peroperative subcortical electrostimulation or temporal lobectomies did not demonstrate permanent language deficits following resection of its anterior segment. The MdLF has close relationships to adjacent bundles, such as the arcuate fasciculus and the inferior fronto-occipital fasciculus that are required to be recognized and differentiated for adequate interpretation of tractography images and surgical planning.

Keywords

Fiber bundles Anatomy Middle longitudinal fasciculus Temporal operculum 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Igor Lima Maldonado
    • 1
    • 2
    • 3
    • 4
  • Ilyess Zemmoura
    • 3
    • 5
  • Christophe Destrieux
    • 3
    • 5
  1. 1.Departamento de BiomorfologiaInstituto de Ciências da Saúde, Universidade Federal da BahiaSalvadorBrazil
  2. 2.Serviço de Neurocirurgia, Unidade Neuro-Músculo-Esquelética, C.H.U. Prof. Edgard SantosSalvadorBrazil
  3. 3.UMR 1253, iBrain, Université de ToursInsermFrance
  4. 4.LE STUDIUM Loire Valley Institute for Advanced StudiesOrléansFrance
  5. 5.CHRU de Tours, Service de NeurochirurgieToursFrance

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