Background and Aim: Meningiomas are usually benign tumors. Depending on their location and
size, dealing with them can be problematic. We report an exceptiona l cas e o f gigant ic frontal
meningioma. Its diagnosis was misleading and the excision laborious.
Case Presentation: A 29-year-old patient who presented gradually over 5 years, developed
behavioral disorders then swelling of the vertex at the frontal level and decreased visual acuity.
Physical examination on admission revealed a median frontal swelling slightly lateralized to the
left axis of approximately 10 cm, hard, covered with the healthy, severe frontal syndrome, and
decreased visual acuity. Computerized tomography (CT) scan showed a voluminous medial frontal
lesion lateralized to the left, with irregular limits, superior sagittal sinus invasion, brain engagement
under the scythe, heterogeneous contrast taking, and significant osteolysis first evoking tumor
metastasis. Magnetic resonance imaging (MRI) suggested a meningioma. The resectio n was
macroscopically complete. Dural and cranial plasty was performed. The postoperative follow-up
was simple. Histology concluded that the meningioma was grade 1 based on the World Health
Organization (WHO) classification.
Conclusion: Late-diagnosed meningiomas can take on very large proportions and pose
management problems while seriously complicating the patient's functional and vital prognosis

Intracranial, Exteriorized, Meningioma