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  • Title: [Nasal dermoïd cyst with intracranial extension: which approach?].
    Author: Bahloul K, Dhouib M, Chaari I, Abdelmoula M.
    Journal: Neurochirurgie; 2011 Jul; 57(3):125-8. PubMed ID: 21899863.
    Abstract:
    Dermoïd cyst is the most common midline congenital nasal tumor. Intracranial extension is rare but possible, must be suspected and confirmed by a cerebral magnetic resonance imagining (MRI). Only total surgical removal via a combined intracranial/extracranial approach appears to provide a complete resolution and effective protection against late recurrence. We report a case of a 2 years old patient who was operated for a nasal congenital cyst extending to the nasal septum. Anatomopathology showed a dermoïd cyst. Five years later, he presented local recurrence of the dermoïd cyst with intracranial extension through a bifid crista galli. We conclude that to avoid recurrence, the removal of the nasal cyst and sinus tract must be followed to its dural attachment. A transfacial approach can be associated with frontal craniotomy, which can provide adequate exposure for complete removal of the intracranial component of the cyst and sinus tract. A literature review was performed.
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