TITLE:
Olfactory Groove Meningioma Extension to Paranasal Sinus and Nasal Cavity: Combined Approach by Unilateral Subfrontal and Endoscopic Endonasal
AUTHORS:
David Shrestha, Feng Liang, Bibek Gyanwali
KEYWORDS:
Bony Defect, Cancellous Bone, Nasal Extension, Olfactory Groove Meningioma
JOURNAL NAME:
Open Access Library Journal,
Vol.2 No.12,
December
15,
2015
ABSTRACT: The local extension of olfactory groove meningioma into the paranasal
sinuses and nasal cavity eroding underlying bone in young patients is
considered as an unusual and extremely rare event. We report the case of a 25-year-old
female of primary growth of olfactory groove meningioma extension to left ethmoidal
sinus and nasal cavity, presented with sudden onset of seizure after delivering
a baby. Although olfactory groove meningioma can grow to extreme size with
unnoticed symptoms, frequent nasal obstruction, unilateral headache and gradual
loss of smell are described. Head image revealed large mass into the anterior
cranial fossa extending into the paranasal sinus and left nasal cavity
containing cancellous bone. Considering the possibility of postoperative morbidity
and mortality, complete removal of large tumor and the dura tail that extends
beyond its attachment at skull base becomes challenging. The combined
unilateral subfrontal and endoscopic endonasal approach is applied to achieve the
Simpson grade-I removal.