JOURNAL ARTICLE

[Nasal dermoïd cyst with intracranial extension: which approach?]

K Bahloul, M Dhouib, I Chaari, M Abdelmoula
Neuro-Chirurgie 2011, 57 (3): 125-8
21899863
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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