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Minim Invasive Neurosurg. 2009 Jun;52(3):149-51. doi: 10.1055/s-0029-1231068. Epub 2009 Jul 31.

Combined supraciliary and endoscopic endonasal approach for resection of frontal sinus mucoceles: technical note.

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Weill Cornell Brain Tumor Center, Department of Neurological Surgery, Weill Medical College of Cornell University, New York 10065, USA.



Mucoceles are progressive, slow-growing lesions of the paranasal sinuses that, left untreated, can erode into surrounding structures. Complete obliteration and exenteration of the frontal sinus via a bicoronal skin incision and frontal craniotomy is the standard neurosurgical approach to treat these lesions.


We describe two patients who underwent a combined supraciliary "keyhole" craniotomy and endonasal endoscopic resection of mucoceles with frontal sinus obliteration. The technique takes advantage of a smaller incision, while preserving adequate visualization and the ability for surgical instrumentation. Through the craniotomy, the frontal sinus mucosa is fully exenterated, the posterior table of the sinus is removed to establish communication with the intracranial space, and the nasal frontal ducts are packed with autologous tissue. The endoscopic endonasal route allows a minimally invasive access to the frontal nasal duct to ensure its blockage from the intracranial compartment. Additionally, the endoscope can be used from above through the supraciliary approach to allow for contralateral frontal sinus exposure and mucosal exenteration.


The combined supraciliary-endoscopic endonasal approach provides a minimally invasive access for the treatment of sinonasal disease with frontal sinus mucoceles that invade the intracranial cavity.

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