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Updated: Aug 12, 2025

Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
Combined Approach for Giant Temporal Meningoencephalocele
Claudio Carnevale1,2, Miguel Garcia-Wagner1, Carolina Morales-Olavarría1
1Department of ENT and Head and Neck, Hospital University Son Espases, Palma de Mallorca, Spain.
Introduction:
To present a complex case of giant meningoencephalocele after a canal wall down mastoidectomy and describe our preferred approach to repair meningoencephalic herniation of the temporal bone.
Case Report:
A 20-year-old patient, who had previously undergone type III tympanoplasty with total ossicular reconstruction prosthesis for an attic cholesteatoma, presents with clinical and imaging features compatible with the diagnosis of a giant temporal meningoencephalocele. We performed a combined approach -transmastoid plus minicraniotomy- to repair the skull base defect. A multilayer reconstruction of the defect with septal cartilage and temporal fascia was performed. After a 48 months follow-up, the patient remains symptom free without signs of tissue herniation.
Conclusions:
Transmastoid plus minicraniotomy combined approach is a safe and feasible technique in case of large and anterior skull base defects with low surgical morbidity, allowing a safe and multilayered reconstruction, even in the context of a simultaneous active chronic otitis media.

