Dr. Danilo Otávio de Araújo Silva – Rua Paissandu 200 / 401 50070-200 Recife PE Brasil. E-mail: [email protected] Foramen magnum meningiomas ( FMM) are rare tumors. They represent around 3% of all meningiomas. According to the literature, these tumors are among the most challenging meningiomas to treat. The main classification system of these lesions depends whether the tumor is anterior or p...

Although foramen magnum meningiomas are usually removable, their location poses considerable surgical risk. The authors present three cases of foramen magnum meningioma. The first involved a ventral type tumor extending to the second cervical body. Following bilateral mandibulotomy, surgery was performed via the anterior transoral approach and the tumor was totally removed. Nine days postoperat...

BACKGROUND Approximately 60% of meningiomas are associated with peritumoral edema. Various causative factors have been discussed in the literature. The objective of this study was to investigate the correlation of PTBE with clinical, radiologic, and surgical aspects and recurrence of meningiomas. METHODS Sixty-one patients with benign meningiomas were chosen for surgical treatment by the Grou...

OBJECTIVE To analyze the clinical outcome of patients with foramen magnum (FM) meningiomas. METHOD Thirteen patients (11 Feminine / 2 Masculine with FM meningiomas operated on through lateral suboccipital approach were studied. Clinical outcome were analyzed using survival (SC) and recurrence-free survival curves (RFSC). RESULTS All tumors were World Health Organization grade I. Total, subt...

Meningiomas and neurofibromas are the most common extramedullary tumors in the region of the foramen magnum. The clinical symptoms are variable, including headache, occipitocervical pain, and hoarseness. Neurological symptoms are present only in 40% of cases. The age group ranges from 4 to 56 years. A number of patients are misdiagnosed as multiple sclerosis, syringomyelia, and cervical disc di...

Benign extramedullary tumours of the foramen magnum region are largely schwannomas and meningiomas. Tumours originating from the motor part of cranial nerves, such as the VIIth, IXth, XIth and XIIth cranial nerves, are extremely rare. Hypoglossal nerve (cranial nerve XII) schwannomas are such an example, usually arising intracranially and, in exceptional cases, extending into the extracranial c...

Accessory nerve meningiomas are exceedingly rare. We present a case of a nine-year-old patient with neurofibromatosis type 2 who had radiologic evidence of spinal cord compression from an upper cervical/foramen magnum lesion. He was asymptomatic from this lesion, but it progressed in size. The tumor was resected and histologic investigation revealed frequent tight whorls and psammoma bodies con...

The transoral approach to clivus and upper cervical region is a direct route for treating pathology ventral to the brainstem and upper cervical spinal cord with low morbidity and mortality rates. This approach may be used for congenital atlanto-axial dislocation, fracture dislocation, vertebrobasilar aneurysms, basilar invagination, compressive rheumatoid pannus and tumours of the craniovertebr...