Introduction The management of petroclival meningiomas is among the most intimidating in neurosurgery, due to its difficult accessibility and close relationship with vital structures; therefore, an appropriate exposure mandatory. We present a surgical video demonstrating presigmoid transtentorial approach, associated opening retrosigmoid dura meningioma, performed by senior surgeon (L.A.B.B.), along indications pitfalls. Approach Decision patient's clinical history summed tumor's...

Paragangliomas are tumors originating from the paraganglionic system (autonomic nervous system), mostly found at region around jugular bulb, for which reason they also termed glomus jugulare (GJT). Although these lesions appear to be histologically benign, clinically present with great morbidity, especially due invasion of nearby structures such as lower cranial nerves. These challenging tumors, need complex approaches and knowledge skull base. We case a 31-year-old woman, operated by senior...

Cavernous sinus (CS) tumors are complex and rare lesions with treatment challenges a degree of controversy, principally due to surgeons' unfamiliarity intracavernous surgery. The main symptoms facial pain or numbness (V nerve), proptosis, disturbance ocular motility function (III, IV, VI nerves), visual disturbances (compression II pituitary disfunction if the tumor continues growing stalk compression. We present this case, operated by senior author, 52-yr-old woman 6 mo progressive diplopia...

Tentorial meningiomas are challenging tumors because of its complex relationship with vital neurovascular structures. We present the case a 41-yr-old female history right-sided facial numbness associated pain around ear. Magnetic resonance imaging demonstrated lesion in right tentorium edge closely related porus trigeminus, suggestive meningioma. Because worsening symptoms patient underwent surgery for tumor removal. A standard temporo-zygomatic craniotomy was performed, followed by an...

Introdução: O processo clinoide anterior pode apresentar variações anatômicas entre os indivíduos, até mesmo com alterações no indivíduo (entre lados), principalmente relacionado à formação de ponte óssea ele e o médio posterior. reconhecimento do forame clinocarotídeo é importante tratamento aneurismas segmento oftálmico da artéria carótida interna, uma vez que a necessidade realizar clinoidectomia proceder-se lesão inadvertida das estruturas vasculares. Objetivo: Revisar incidência...

Introdução: O processo clinoide anterior pode apresentar variações anatômicas entre os indivíduos, até mesmo com alterações no indivíduo (entre lados), principalmente relacionado à formação de ponte óssea ele e o médio posterior. reconhecimento do forame clinocarotídeo é importante tratamento aneurismas segmento oftálmico da artéria carótida interna, uma vez que a necessidade realizar clinoidectomia proceder-se lesão inadvertida das estruturas vasculares. Objetivo: Revisar incidência...

Abstract Trigeminal schwannomas are benign lesions arising from the Schwann cells of trigeminal nerve. This is an unusual tumor that accounts for less than 0.4% intracranial pathologies, even though they second most frequent schwannoma after vestibular schwannoma. The spreads along natural course V nerve at its cisternal portion, ganglion inside Meckel's cave or through peripheral division. Even can reach great size and become multicompartmental. We present a 51-yr-old woman, with history 3...

Abstract Tuberculum Sellae Meningiomas (TSMs) are lesions dramatically related to the optic apparatus once principal clinical complain remains on visual alterations. This is main picture decision making evaluate best time, risk-benefit, and surgical approaches patient treatment. In this video, we present a 65 years old female with 30 days complaint of unilateral (right) complete blindness impaired right eye field test. On physical examination, there were normal pupillary function light...

Meningiomas of the cerebellopontine angle (CPA) are second most frequent lesions related to this region (around 10–15%),1 being vestibular schwannomas first 85%). This arise from dura petrosal surface temporal bone, lateral trigeminal nerve (Fig. 1). Variable attachment sites and directions growth make different clinical presentations operative challenges. pathologies can be classified accordingly they're extension internal acoustic meatus in: postmeatal, premeatal, large meningiomas with...

Resumo Contexto: O ensaio clínico aleatório é definido como um estudo prospectivo, o qual compara efeito e valor de intervenções em seres humanos, envolvendo ou mais grupos, a pelo menos grupo-controle, com alocação aleatória dos participantes utilização medidas controle. A qualidade pode ser definida probabilidade planejado gerar resultados sem tendenciosidades que se aproximem da realidade terapêutica. Objetivo: Avaliar ensaios clínicos aleatórios neurocirurgia publicados no Brasil....

Foramen magnum (FM) meningiomas are challenging lesions. We present the case of a 38-year-old female with neck pain, dysphonia, and slight twelfth nerve palsy. Imaging workup was highly suggestive an FM meningioma, microsurgical resection aid intraoperative neurophysiological monitoring indicated. A transcondylar approach employed, vertebral artery mobilized, tumor completely removed. Postoperative MRI demonstrated complete resection. There were no signs cervical instability. The patient...