Angiomatous meningioma, characterized by an abundant vascular component, is a rare subtype of meningioma, accounting for 2.1% of meningiomas [1]. Cranio-Cervical Junction Meningioma: A Rare Case Report Nicholas B. Levine M.D. - CHP - communityhealthpartners.org meningioma craniocervical junction far lateral approach Abstract Tumors located in the craniocervical junction region are significantly challenging for surgical resection. Cranio-cervical junction Meningioma 1 - YouTube We herein report a case of angiomatous meningioma in the craniocervical junction. The patient presented with intermittent headache with discomfo … Occipito-cervical fusion following gross total resection ... 1994. Some authors considered any tumor that was inserted at or passed through the FM as FM tumors. Cranio-cervical junction meningioma accounts for 1.8%-3.2% of all meningiomas [5]. Case Presentation November-December 2021 Volume 69 | Issue 6 Page Nos. Complete resection is the primary goal of surgery. Cite . Tumor was resected via an extreme-lateral approach with partial condylectomy to expose the anterior portion of the brain stem. pp. Primary calcified rhabdoid meningioma of the cranio-cervical junction: A case report and review of literature . IgG4-RD may mimic a variety of diseases, including skull-base meningiomas and CRS. There was much variability in the older literature regarding the definition of FM tumors. Aim: We report a unique and rare case of improvement motoric and sensory after surgical resection intramedullary craniovertebral junction meningioma. Methods: Radiological examinations, clinical data, and operation notes were evaluated, and … F oramen magnum lesions represent only 0.3%–3.2% of all diagnosed meningiomas, but account for up to 77% of all benign intradural, extramedullary tumors of the craniocervical junction. He has an interest in skull base surgery, brain tumours, pituitary surgery, vestibular schwannoma, trigeminal neuralgia and other cranial procedures. Although meningiomas account for a sizable proportion of all primary intracranial neoplasms (14.3–19%), only 1.8 to 3.2% arise at the foramen magnum. 18. These lesions are often large at the time of diagnosis [6]. 2,16 The first description of a foramen magnum meningioma (FMM) was published by Hallopeau in 1872, in an autopsy report at the Laribosiere Hospital in Paris; 4,15 … Due to its complexity of the anatomy of this area, which includes the brain stem, … Professor of Neurosurgery at the Pennsylvania Hospital. Diagnosis is by MRI with contrast agent. concluded that the relationship of the craniocervical junction tumors to neighboring structures, i.e. Case Report A 55-year-old woman presented with increasing episodes of a paroxysmal headache on the right occipital region, superior and posterior to the ear, over the previous 3 months. Vol 43 (videosuppl2) . Surgical resection remains the mainstay of treatment, although advancements in radiosurgery have led to increased utilization as a primary or adjuvant therapy. Foramen magnum meningiomas are challenging for neurosurgeons because of the complex anatomy of foramen magnum. Keywords: Calcified, cranio cervical junction, primary, rhabdoid meningioma INTRODUCTION Rhabdoid meningioma (RM) is a relatively new subtype of meningioma, first described in 1998 by Kepes et al. Meningioma of the cranio-cervical junction is a rare and unique diagnosis among meningiomas [5- 7]. A retrospective analysis of 38 patients who were operated on for 40 meningiomas of the craniocervical junction between September 1977 and August 1995 found that the relationship of the tumor to neighboring structures, i.e., the vertebral artery in particular, determines its resectability. BibTex; Full citation Abstract. ABSTRACT. Samii M, Klekamp J, Carvalho G. Surgical results for meningiomas of the craniocervical junction. 16:45 – 17:15 COFFEE BREAK. Objective: We have undertaken a retrospective analysis of 38 patients who were operated on for 40 meningiomas of the craniocervical junction between September 1977 and August 1995 to determine which factors influenced resectability, complications, and postoperative outcomes. Slow-growing craniocervical junction tumours such as meningioma that may touch the brainstem or medulla. 0 public playlist include this case. We shared our experience of a meningioma at craniocervical junction resected through far lateral approach in a 68-year-old female. They may cause specific symptoms depending on the neoplasm size and location. Slowly growing craniocervical junction tumors (eg, meningioma, chordoma) can impinge on the brain stem or spinal cord. Meningioma at the Craniocervical Junction. Craniocervical Junction 209 Craniocervical junctions in 35 abnormal and 10 normal subjects were studied with a 0.5 T superconducting magnetic resonance imaging system. In the absence of other causes, a meningioma in the craniovertebral junction, whether on the left or right, should not be considered as fortuitous but rather as the actual cause of syncope. The head is turned about 45 degrees toward the floor, and a curvilinear incision is utilized. Intracranial components of the meningioma may cause brainstem dysfunction and lower cranial nerve neuropathies, as well as occasional cerebellar signs. meningiomas of the craniocervical junction, while some of the more distal spinal axis meningiomas are discovered as a result of chronic back pain. Neuro- rosci 2004;11(08):863–867 surg Focus 2013;35(06):E12 17 Samii M, Klekamp J, Carvalho G. Surgical results for meningiomas 5 Mahore A, Ramdasi R, Mavani S, et al. Expand ... slow-growing noncancerous brain tumor called a meningioma can develop at the craniocervical junction and press on the brain or spinal cord. ABSTRACT. Intradural extramedullary mass is noted at craniocervical junction, posterior to C1 and odontoid process which causing right posterolateral displacement of the cervical cord. You can see the extent of the bony removal and minimal suboccipital craniectomy to the craniocervical junction. Clin Neurol Neurosurg. Medical Director, Gamma Knife Center. Craniocervical junction abnormalities, of which there are many, can be congenital or acquired. Congenital abnormalities may be specific structural abnormalities or general or systemic disorders that affect skeletal growth and development. Many patients have multiple abnormalities. Meningiomas are tumors originating from the meninges of the brain and spine that are typically benign. The aim of the study is to describe the technique of a posterolateral approach and results in a series of patients with meningiomas of the foramen magnum and the first two cervical vertebrae. Additionally, he treats patients with back pain, degenerative spine and disc disease. Key words: meningioma, foramen magnum, craniocervical junction, case report 1. They frequently originate from the arachnoid cells at the dura matter of the craniocervical junction. Notani N, Miyazaki M, Kanezaki S et al. Condition of the craniocervical junction leading to herniation of the cerebellum through the foramen magnum and kinking of the medulla. We Describe a case of syringomyelia with chiari malformation (CM) type -1 associated with Tentorial meningioma and discuss the pathogenesis based on neuroimaging findings. Sen CN, Sekhar LN. Related Radiopaedia articles. They originate from the arachnoid cap cells of the lower part of the clivus and upper aspect of C2 lamina. Symptoms depend on the tumor’s location. They may cause specific symptoms depending on the neoplasm size and location. 19. Magnetic resonance image (MRI) of the cervical spine showed a gadolinium-enhanced extraaxial mass within the right aspect of the foramen magnum at the craniocervical junction, measuring 2.7×2.2×2.3 cm . They originate from the arachnoid cap cells of the lower part of Methods We retrospectively reviewed 22 consecutive cases of craniocervical junction meningiomas operated on between August 1995 and May 2012. Case report: 37 years old woman … Angiography also plays a critical role in Infourthe radiological diagnosis was meningioma, and in one the possibility of ossifying posterior longitudinal ligament was raised. The aim of the study is to describe the technique of a posterolateral approach and results in a series of patients with meningiomas of the foramen magnum and the first two cervical vertebrae. Angiomatous meningiomas arising from the spinal cord is even rarer. The mass shows iso to slightly hyperintense on T2W and isointense on T1W images. Cervicocranial syndrome symptoms. It is believed that among all meningiomas, Oncol Rep. Oct 2012;28(4):1461-7. 17:15 – 17:30 Anatomy of Foramen Magnum and Craniocervical Junction. Complete resection should be the primary goal of surgery but is often difficult to achieve due to their close relationship to critical vascular … Craniocervical tumors junction. Results There were 15 female and 7 male patients (mean age: 54 years). We shared our experience of a meningioma at craniocervical junction resected through far lateral approach in a 68-year-old female. Being rare, craniocervical junction meningiomas can be overlooked as a cause of syncope during initial investigation. Meningioma of the cranio-cervical junction is a rare and unique diagnosis among meningiomas [5- 7]. Vertebral artery transposition via an extreme-lateral approach for anterior foramen magnum meningioma or craniocervical junction tumors. Methods We retrospectively reviewed 22 consecutive cases of craniocervical junction meningiomas operated on between August 1995 and May 2012. This intra-operative photograph demonstrates the meningioma seen in the prior MRI scan at the cervicomedullary junction. The dashed white line indicates the tumor, the blue arrow points to the dura, and the green arrow demonstrates nerve rootlets of the spinal accessory nerve (cranial nerve XI). Promoted … Three had MRI studies of the area and two had CTmyelo-graphy. A scalp flap is reflected along with a suboccipital muscles. MRS study of meningeal hemangiopericytoma and edema: a comparison with meningothelial meningioma. The most common locations of HBs are the cerebellum and sellar/suprasellar and intraventricular regions. Case report A 36-year-old female was admitted with We shared our experience of a meningioma at craniocervical junction resected through far lateral approach in a 68-year-old female. Preoperative MRI scans, with axial view (left) and sagittal view (right) show a meningioma located at the patient's craniocervical junction. METHODS: From March 2000 to December 2014, 28 of 48 patients underwent VA transposition for anterior foramen magnum meningioma (16 patients) and craniocervical junction (CCJ) tumors (12 patients). MR imaging is especially useful in postoperative cases, FM meningiomas with predominant spinal extension (below C1, minimal clival extension) are, therefore, better approached with a posterolateral route. craniocervical junction. Symptoms and signs of craniocervical junction abnormalities can occur after a minor neck injury or spontaneously and may vary in progression. This International journal, Journal of Clinical Neuroscience publishes articles on clinical neurosurgery and neurology and the related neurosciences such as neuro-pathology, neuro-radiology, neuro-ophthalmology and neuro-physiology. The patient's symptoms improved shortly after surgery. What does Chiari-like malformation cause a disruption in flow of. The scope of this study is focused on the analysis of SMs located below the craniocervical junction. CVJ has unique anatomical bone and … I left California in 1996 for medical school at the University of Michigan not knowing that I would not […] Meningiomas were classified based on origin as spinocranial (7 cases) or craniospinal (15 cases). Meningiomas of the craniocervical junction present a surgical challenge because of involvement of the adjacent brain stem, vertebral artery, and lower cranial nerves. Neurosurgery. The patient Craniocervical junction anomalies can be really dangerous in some of its varieties. Clinical Director, Center for Precision Surgery. Sekhar LN, Babu RP, Wright DC. We report a series of four patients with anterior and anterolateral meningiomas of the … 17:30 – 17:45 Far-Lateral Approach. We herein report a case of angiomatous meningioma in the craniocervical junction. These neoplasms represent, by various estimates, around 0.3% to 1.8-3.2% of all intracranial meningiomas (1 case per 2-7 million people per year) [6,7]. Approximately 70% of all tumors in the craniocervical junction are meningiomas of benign origin. 2. Their indolent development at the craniocervical junction makes clinical diagnosis complex and often leads … doi: 10.1097/ 00006123-199612000-00003. Surgical resection of cranial base meningiomas. In four patients a transoral approach wasusedto removethe retrodental masswith minimal bone resection so as not to com- Kumar CV, Satyanarayana S, Rao BR, Palur RS. Preoperative sagittal T2-weighted (A) MRI of case 3 depicting a foramen magnum and lower clivus meningioma with a cranial extension up to the vertebral junction. The combination of Chiari type-1 with syringomyelia and posterior fossa tumor is rare. Early detection can help the patient to reverse various signs and problems arising from the pathology. Samii et al. Approximately 70% of all tumors in the craniocervical junction are meningiomas of benign origin. Here, meningioma is a well circumscribed oval or round, lobulated tumor attached to the dura. [2] in the same year had published a bigger case series of 15 patients under the 1,2 1 1,3 1 4 1 1 2 3 4 Regarding the imaging findings (dural based mass isointense to grey matter on both T1 and T2 weighted sequences), craniocervical junction meningioma is the final diagnosis. 32. Cushing divided the meningiomas involving the craniocervical junction into craniospinal and spi-nocranial, depending on whether the tumor was reaching the … We report 2 cases of atypical meningiomas of foramen magnum presenting as rotatory paralysis. Angiomatous meningiomas arising from the spinal cord is even rarer. Prognosis of malformations of the craniocervical junction. Tumor was resected via an extreme-lateral approach with partial condylectomy to expose the anterior portion of the brain stem. Extreme lateral approach to ventral and ventrolaterally situated lesions of the lower brainstem and upper cervical cord. Aurora Spine Services offers comprehensive care from a team of WI back pain experts. 16:30 – 16:45 Petroclival Meningiomas: Posterior Transpetrosal Approach. Craniocervical junction meningiomas most frequently extend above and below the foramen magnum equally, although they can be predominantly intracranial or intraspinal. 31. RA and Paget's disease can result in basilar invagination with spinal cord or brain stem compression. FM meningiomas arise at the dura of the craniocervical junction. Sees Adults (18-65), Geriatrics (65+) 16 years in practice. 10.3171/2017.10.focusvid.17366 . Samii et al. NEUROSURGICAL FOCUS Neurosurg Focus 43 (Suppl2):V11, 2017 VIDEO The transcondylar approach to craniocervical meningiomas Marcio S. Rassi, MD,1 Jean G. de Oliveira, MD, PhD,2 and Luis A. 10. Cranial Historically considered as a nobody’s land, craniovertebral junction (CVJ) surgery or specialty recently gained high consideration as symbol of challenging surgery as well as selective top level qualifying surgery. Accurate diagnosis and expedited administration of steroids may prevent unnecessary interventions and progression to treatment-resistant fibrosis. World Neurosurg 2016;88:154-65. Neurosurgery 1996; 39(6): 1086–1094. Only one case report was found so far in literature. Although meningiomas account for a sizable proportion of all primary intracranial neoplasms (14.3 19%), only 1.8 to 3.2% arise at the foramen magnum. They are 12 meningiomas, 9 neurinomas, 3 chordomas, 1 teratoma and 1 capillary lymphangioma. The alliance between Neurosurgeons and Otorhinolaringologists has become stronger in the time. Photographs taken during surgery demonstrate lateral approach to tumor seen on above MRI. They have been reported in the literature as existing concurrently as a single mass, but very rarely have they been shown to present at the craniocervical junction. 4.8 with 183 ratings. 17:45 – 18:00 Surgery of Foramen Magnum Meningiomas. RM is an aggressive variant of meningiomas, classified as Grade III malignancy in 2000, 2007 versions of WHO classification of the tumors of the central nervous system. Craniocervical Junction (CCJ) meningiomas account for 1.8–3.2% of all the meningiomas [1]. from the clivus, the cerebellopontine angle, or the occiput and extend into the spinal canal across the foramen magnum (craniocervical meningiomas) or may originate in the spinal canal and grow PMID: 24438809; Righi V, Tugnoli V, Mucci A, et al. Neurosurgery. Occipito-cervical fusion (OCF) is a demanding and morbid surgical procedure, which can be used in such patients. Craniocervical Junction (CCJ) meningiomas account for 1.8–3.2% of all the meningiomas [1]. DEFINITIONS. Samii M, Klekamp J, Carvalho G. Surgical results for meningiomas of the craniocervical junction. Dr. Weiner is a fellowship-trained orthopedic surgeon who specializes in spine surgery. Angiomatous meningioma, characterized by an abundant vascular component, is a rare subtype of meningioma, accounting for 2.1% of meningiomas [1]. Objective: Meningioma of the cranio-cervical junction is a rare diagnosis and demand a thorough surgical planning as radical excision of these tumors is difficult. Sami M, Klekamp J, Carvalho G. Surgical results for meningiomas of the craniocervical junction. Complete resection should be the primary goal of surgery but is often difficult to achieve due to their close relationship to critical vascular … Neurosurg Clin N Am. discussion 1094–1085 CrossRef PubMed Google Scholar 19. ON as the only presenting symptom of meningioma in the craniocervical junction in order to alert clinicians to consider the underlying causes of ON. From March 2000 to December 2014, 28 of 48 patients underwent VA transposition for anterior foramen magnum meningioma (16 patients) and craniocervical junction (CCJ) tumors (12 patients). Surgical outcomes of craniocervical junction meningiomas: a series of 22 consecutive patients. 1996;39(6):1086–94. Mr Alireza Shoakazemi is a Consultant Neurosurgeon specialising in Cranial neurosurgery. The midline of the posterior fossa anterior to the brainstem or craniocervical junction is the classic location of the intracranial disease. A slowly growing tumor (eg, meningioma, chordoma) at the craniocervical junction produces symptoms by impinging on the brain stem and the spinal cord. Neurosurgery. 1996. Suffering from lower back pain, sciatic or a slipped disc? The treated benign skull base meningiomas were mainly located at the cavernous sinus in 82 patients, at the cerebellopontine angle region in 52, at petroclival location in 32, at the sphenoidal ridge in 30, clinoidal location in 18, the petrous apex in 14, at olfactory groove and Planum sphenoidal in 10, the craniocervical junction in 4, orbital Tumors located in the craniocervical junction region are significantly challenging for surgical resection. Symptoms and signs of craniocervical junction abnormalities can occur after a minor neck injury or spontaneously and may vary in progression. Although only about 1 to 3% of meningiomas are located at the foramen magnum (FM), this tumor subtype comprises about 75% of all benign, intradural, extramedullary tumors of the cervicomedullary junction. Meningioma of foramen of the craniocervical junction. The journal has a broad International perspective, and emphasises the advances occurring in Asia, the Pacific Rim region, Europe … 39: 1086-1094. The patient presented with intermittent headache with discomfort in the neck and shoulders for 3 years without any positive signs. Previous studies found that the facet joint of the C1 vertebra were removed (C1 facetectomy) before extirpation from the extramedullary tumor in craniocervical junction, leading to postoperative upper cervical instability or deformity. In this context recurrence is most likely due to regrowth of residual tumor. Original magnification × 60. Background Schwannomas and meningiomas are relatively common tumors of the nervous system. Background: Meningiomas of the craniovertebral junction are complex lesions representing a neurosurgical challenge. The authors treated 26 cases of extramedullary tumors around foramen magnum and craniocervical junction by various surgical approaches between 1982 and February 1993. 2,16 The first description of a foramen magnum meningioma (FMM) was published by Hallopeau in 1872, in an autopsy report at the Laribosiere Hospital in Paris; 4,15 … His areas of special interest and expertise include: Dr. Weiner has been published in several peer-reviewed journals and presented at conferences and scientific meetings. the craniocervical junction. Surgical resection of a Cranio-cervical junction Meningioma meningioma craniocervical junction endoscopic endonasal approach Abstract Foramen magnum (FM) tumors represent one of the most complex cases for the neurosurgeon, due to their location in a very anatomically complex region surrounded by the brainstem and the lower cranial nerves, by bony elements of the craniocervical Stanford Libraries' official online search tool for books, media, journals, databases, government documents and more. 2 of 6 oblique views of the cervical spine) which are used to identify factors that influence treatment including reducibility of the abnormality, bony erosion, the mechanics of compression, and the presence of abnormal ossification centers and epiphyseal growth plates with anomalous development. Discussion The differential diagnosis of a space‐occupying lesion at the craniocervical junction includes neoplastic processes such as chordoma, meningioma, nerve sheath tumour, chondrosarcoma and metastatic tumour. Since the initial pathological description of a FMM in 1872, various surgical approaches have been described with the aim of achieving radical tumor resection5). John Y. K. Lee, MD, MSCE. Surgical management of ventrally located spinal meningiomas via posteriori approach. As they produce delayed symptoms so their development at the craniocervical junction makes clinical diagnosis complex and often leads to a long interval between onset of symptoms and diagnosis. Slowly growing craniocervical junction tumors (eg, meningioma Meningiomas Meningiomas are benign tumors of the meninges that can compress adjacent brain tissue. meningioma craniocervical junction far lateral approach Abstract Tumors located in the craniocervical junction region are significantly challenging for surgical resection. 2017 . The transcondylar approach to craniocervical meningiomas Neurosurgical FOCUS . In 2017, the article reported by Marin reviewed 1759 HBs, most of which were located in the cerebellum (70%, n = 1230), followed by the fourth ventricle (1.8%), cerebellopontine angle (1.8%), and the craniocervical junction (1.6%). Axial 3D-CISS images (B) show a sufficiently wide craniocervical cerebrospinal fluid (CSF) space and a bilaterally well distinguishable vertebral artery. 1515-1904 Online since Thursday, December 23, 2021 Accessed 13,940 times. 5: 299-330. Meningiomas were classified based on origin as spinocranial (7 cases) or craniospinal (15 cases). Meningiomas represent 14.319% of all intracranial tumors, the most common non-glial primary intracranial tumor (1, 2). the VA in particular, determines its resectability and recommended using extreme caution with en plaque or recurrent meningiomas. Sagittal T2. The patient 18:00 – 18:15 Role of Endoscopic techniques for Chordomas Results There were 15 female and 7 male patients (mean age: 54 years). There is no apparent evidence of local invasion or adjacent bony destruction. Meningiomas comprise up to 20% of all intracranial tumors. e posterior aspect of the craniocervical junction exhibits natural bony openings that may be used to access the upper cervical spinal canal, the foramen magnum and the lower clivus. F oramen magnum lesions represent only 0.3%–3.2% of all diagnosed meningiomas, but account for up to 77% of all benign intradural, extramedullary tumors of the craniocervical junction. INTRODUCTION Meningiomas are extra-axial central nervous system (CNS) tumors that arise from the arachnoid cells of the dura mater. By Mohammad Abolfotoh, Daryoush Tavanaiepour, Changki Hong, Ian F Dunn, Hart lidov and Ossama Al-Mefty. PDF access policy Feb 2014;117:71-9. [1] Then, Perry et al. Cervicocranial syndrome symptoms. B. Borba, MD, PhD1,3 1 Department of Neurosurgery, Evangelic University Hospital of Curitiba, Parana; 2Division of Cerebrovascular and Skull Base Surgery, Center of Neurology and … The craniocervical junction consists of the bone that forms the base of the skull (occipital bone) and the first two bones in the spine (which are in the neck): the atlas and axis. Conclusions: We achieved gross total resection of spinal angiomatous meningioma arising in the craniocervical junction. They are intradural and extramedullary tumor. We shared our experience of a meningioma at craniocervical junction resected through far lateral approach in a 68-year-old female. She Again, you can see the location of entering at the point where a dot is marked. Evolution of an approach: The midline suboccipital-subtonsillar approach to anterior foramen magnum meningiomas Speaker: Florian Roser (United Arab Emirates) Approaches to craniocervical junction tumors Speaker: Luciano Mastronardi (Italy) Minimalistic approaches to cranio-vertebral junction tumors Background: Meningioma of the craniovertebral junction is a unique and rare case.The sensitivity of the region to surgical still debateable. Bydon M, Ma TM, Xu R, et al. meningioma [4]. Foramen magnum meningiomas are very rare lesions. Objective Meningioma of the cranio-cervical junction is a rare diagnosis and demand a thorough surgical planning as radical excision of these tumors is difficult. Meningiomas comprise up to 20% of all intracranial tumors. Although only about 1 to 3% of meningiomas are located at the foramen magnum (FM), this tumor subtype comprises about 75% of all benign, intradural, extramedullary tumors of the cervicomedullary junction. ... T or F: A meningioma is intra-axial and a glioma is extra axial. Slowly growing craniocervical junction tumors (eg, meningioma, chordoma) can impinge on the brain stem or spinal cord. Dr. Lee is a Penn Medicine physician. V11. [6,7] There are more than 100 published cases of intracranial RMs; none have documented extensive calcification or origin from the cranio-cervical junction. Background: Meningiomas of the craniovertebral junction are complex lesions representing a neurosurgical challenge. A histopathological examination confirmed the diagnosis of an angiomatous meningioma. Non‐neoplastic masses such as rheumatoid pannus, gout and elastofibroma have also been … Magnetic resonance of the head revealed a rounded tumor of 2.5 cm in diameter, by its characteristics corresponding to meningioma, at the level of C1 vertebra and craniocervical junction, with the base at spinal canal anterior wall, occupying most of the craniocervical junction, compressing spinal cord and medulla oblongata. Introduction: Meningiomas are slow-growing benign tumors that arise at any location where arachnoid cells reside. Their indolent development at the craniocervical junction makes clinical diagnosis complex and often leads to a long interval between onset of symptoms and diagnosis. However, they can be seen in the cerebellopontine angle, fourth ventricle, and even supratentorially. Although only about 1 to 3% of meningiomas are located at the foramen magnum (FM), this tumor subtype comprises about 75% of all benign, intradural, extramedullary tumors of the cervicomedullary junction. Like other meningiomas, foramen magnum meningiomas (FMMs) are more frequent in females and rare in children. Sagittal spin echo with 30 ... with meningiomas in other parts of the central nervous system [18]. Fresno OFFICE: (559) 22SPINE FAX: (559) 451-3690 7257 N. Fresno Street, Fresno, CA 93720 I am a native Californian who grew up in Los Angeles and attended UCLA. and unique operating conditions, a special group of meningiomas is distinguished - meningiomas of the craniocervical junction or the Foramen Magnum (FM). Causes, symptoms... < /a > ABSTRACT 4 ):1461-7 ) or craniospinal ( cases... Jho 's Minimally Invasive posterolateral approach to ventral and ventrolaterally situated lesions of the junction. 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