This anomaly is classified into two subtypes; transethmoidal and transsphenoidal.
Recurrent streptococcus pneumoniae meningoencephalitis in a patient with a transethmoidal meningoencephalocele.
Basal meningoencephaloceles are further subclassified on the basis of the location of the bone defect as either transsphenoidal, transethmoidal
, sphenoethmoidal, or sphenoorbital.
During the next 2 years, the lesion progressed, extending into the sphenoid sinus and posterior nasal cavity, and a third resection was attempted by way of a combined subcranial anterior skull base, transethmoidal
, and transphenoidal approach.
We successfully treated her with surgical decompression via a computer-assisted, endoscopic transethmoidal orbitotomy.
We performed a computer-assisted orbitotomy via an endoscopic transethmoidal approach (figure).