Acta Neurochirurgica

, Volume 158, Issue 10, pp 1965–1972 | Cite as

Unilateral endonasal transcribriform approach with septal transposition for olfactory groove meningioma: can olfaction be preserved?

  • A. Samy YoussefEmail author
  • Raghuram Sampath
  • Jacob L. Freeman
  • Jameson K. Mattingly
  • Vijay R. Ramakrishnan
Clinical Article - Neurosurgical Techniques



Loss of olfaction has been considered inevitable in endoscopic endonasal resection of olfactory groove meningiomas. Olfaction preservation may be feasible through an endonasal unilateral transcribriform approach, with the option for expansion using septal transposition and contralateral preservation of the olfactory apparatus.


An expanded unilateral endonasal transcribriform approach with septal transposition was performed in five cadaver heads. The approach was applied in a surgical case of a 24 × 26-mm olfactory groove meningioma originating from the right cribriform plate with partially intact olfaction.


The surgical approach offered adequate exposure to the anterior skull base bilaterally. The nasal/septal mucosa was preserved on the contralateral side. Gross total resection of the meningioma was achieved with the successful preservation of the contralateral olfactory apparatus and preoperative olfaction. Six months later, the left nasal cavity showed no disruption of the mucosal lining and the right side was at the appropriate stage of healing for a harvested nasoseptal flap. One year later, the preoperative olfactory function was intact and favorably viewed by the patient. Objective testing of olfaction showed microsomia.


Olfaction preservation may be feasible in the endoscopic endonasal resection of a unilateral olfactory groove meningioma through a unilateral transcribriform approach with septal transposition and preservation of the contralateral olfactory apparatus.


Olfactory groove Meningioma Olfaction preservation Septal dislocation Transcribriform 



We would like to thank Zach Folzenlogen, MD, for assistance with illustrations in this manuscript.

Compliance with ethical standards


No funding was received for this research.

Conflict of interest

All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.


For this type of study formal consent is not required.

Supplementary material


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Copyright information

© Springer-Verlag Wien 2016

Authors and Affiliations

  • A. Samy Youssef
    • 1
    • 2
    Email author
  • Raghuram Sampath
    • 1
  • Jacob L. Freeman
    • 1
  • Jameson K. Mattingly
    • 3
  • Vijay R. Ramakrishnan
    • 3
  1. 1.School of Medicine, Department of NeurosurgeryUniversity of Colorado DenverDenverUSA
  2. 2.Departments of Neurosurgery & OtolaryngologyUniversity of Colorado School of MedicineAuroraUSA
  3. 3.School of Medicine, Department of OtolaryngologyUniversity of Colorado DenverDenverUSA

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