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Updated: Apr 23, 2026

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Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
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Extracranial spheno-ethmoidal sinus meningioma: case report
Ryosuke Mori1, Luigi Maria Cavallo, Elia Guadagno
1Universita degli Studi di Napoli Federico II, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Division of Neurosurgery, Naples, Italy.
Turkish Neurosurgery
|October 1, 2014
Summary
Extracranial meningiomas, rare tumors in the paranasal sinus, can now be safely removed using advanced skull base surgery techniques. This case highlights successful endoscopic resection of a sphenoethmoid sinus meningioma.
Area of Science:
- Neuro-oncology
- Otolaryngology
- Skull Base Surgery
Background:
- Extracranial meningiomas originating in the paranasal sinuses are rare tumors with unknown causes.
- These tumors can present with symptoms like visual disturbances due to their location.
Observation:
- A 60-year-old female experienced a 5-month history of right visual disturbance.
- Imaging revealed a sphenoethmoid sinus mass extending into the posterior ethmoid sinus.
Findings:
- The tumor was pathologically diagnosed as a meningothelial meningioma.
- Complete tumor resection was achieved using an endonasal endoscopic approach, including affected anterior cranial base bone.
- This represents the first documented management of a sphenoethmoid sinus meningioma utilizing advanced skull base surgery techniques.
Implications:
- Modern skull base surgery enables complete and safe removal of these rare tumors.
- Minimally invasive endoscopic techniques reduce risks like cerebrospinal fluid leakage.
- This case expands the understanding of extracranial meningioma management in the sphenoethmoid region.

