Giant Calcified Extra-Axial Cavernoma of the Falx Cerebri. Case Report and Review of the Literature

Background: Cavernous angiomas or cavernomas, are vascular malformations usually located in the brain parenchyma. However, they rarely present as extra-axial lesions, attached to the dura, and may mimic meningiomas. Most reported cases concern the cavernous sinus region and other locations are very uncommon. We present a case of giant calcified extra-axial cavernoma of the falx cerebri and discuss radiological and pathological features in relation with existing literature.

Methods: We report a case of a 61-year-old female, who presented with progressive behavioral problems, gait disturbance, and memory loss over several years. Brain CT-scan and MRI showed an extra-axial lesion in relation to the anterior part of the falx cerebri. Because of mass effect and neuropsychological deficits, a surgical treatment was proposed.

Results: A bifrontal craniotomy was performed, and a bifrontal interhemispheric approach was used to resect the lesion. Pathological analysis revealed characteristics of a cavernous angioma. Post-operative clinical course was slowly favorable, and MRI showed complete resection of the malformation. Radiological and histological features of this rare entity are discussed.

Conclusion: We present a case of giant calcified extra-axial cavernoma of the falx cerebri. Radiological, surgical, and histological features of this rare lesion are presented, and discussed in relation with existing literature.

No conflict of interest has been declared by the author(s).