Primary extradural meningiomas: a report on nine cases and review of the CT-era literature

Lang, Frederick F.; Macdonald, O. Kenneth; Fuller, Gregory N.; DeMonte, Franco

doi:10.3171/jns.2000.93.6.0940

Cited by 194 publications

(291 citation statements)

References 93 publications

Supporting

Mentioning

276

Contrasting

Unclassified

Order By: Relevance

“…In less than 1 % of cases, meningiomas are extradural ectopic meningiomas in subcutaneous tissue, the main nasal cavities or paranasal sinuses, the orbital cavity, the salivary glands, or the diploe of the cranial bone [6]. In the latter case, they are referred to as intraosseous meningiomas [7].…”

Section: Definition and Locationmentioning

confidence: 99%

Cross Sectional Imaging of Solitary Lesions of the Neurocranium

Schäfer

Koch

Streitparth

et al. 2017

Fortschr Röntgenstr

View full text Add to dashboard Cite

ABSTR AC TBackground Although a wide range of processes along the neurocranium are of a benign nature, there are often difficulties in the differential diagnosis.Method In the review CT/MRI scans of the head were evaluated retrospectively regarding solitary lesions along the neurocranium. The majority of the lesions were histologically proven.Results The purpose of the review is to present typical pathologies of the neurocranium and provide a systematic overview based on 12 entities, their locations, prevalence and radiological characteristics.Conclusion Processes, which primarily originate from the neurocranium have to be differentiated from secondary processes infiltrating the neurocranium. For this important diagnostic feature, MRI is typically essential, while the definitive diagnosis is often made on the basis of the medical history and the typical appearance on computer tomography. Key Points▪ There are often difficulties in the precise differential diagnosis of solitary lesions along the neurocranium. Typical solitary pathologies of the neurocranium based on 12 entities were presented. Both magnetic resonance imaging and computed tomography are often essential for an exact differential diagnosis. Schlussfolgerung Unterschieden werden müssen Prozesse, die primär vom Neurokranium ausgehen, von sekundären Prozessen, die das Neurokranium infiltrieren. Für dieses wichtige diagnostische Merkmal ist die MRT meistens unverzichtbar, während die definitive Diagnose dann unter Berücksichti-gung der Anamnese mit dem typischen Erscheinungsbild in der CT häufig gestellt werden kann.

show abstract

Section: Definition and Locationmentioning

confidence: 99%

Cross Sectional Imaging of Solitary Lesions of the Neurocranium

Schäfer

Koch

Streitparth

et al. 2017

Fortschr Röntgenstr

View full text Add to dashboard Cite

show abstract

“…It might also result from occlusion of dural sinus and interruption of cerebrospinal fluid clearance (5). Extradural meningiomas are usually benign and slow growing but unlike intracranial meningioma they have higher tendency to become invasive (11% vs. 3%) (2,6). Meningioma presenting with scalp swelling, osteolytic skull lesions, and extracranial soft-tissue masses are found to be more aggressive (7).…”

Section: Discussionmentioning

confidence: 99%

“…Calvarial meningioma is a variety of extracranial meningioma that originates from meningothelial cells and primarily invades the bone tissue and results in hyperostosis; however, diffuse and widespread bone thickening is rare. Such meningioma is rare unlike the more commonly seen intracranial meningioma and its clinical presentation differs based on its sizes and location (2). They present themselves as a slowly growing scalp mass that are usually pain free and more commonly seen in periorbital or frontoparietal regions (3).…”

Section: Introductionmentioning

confidence: 99%

Primary Calvarial Meningioma

Rasras

Teimouri

Ranjbar

et al. 2015

Jentashapir J Health Res

View full text Add to dashboard Cite

Introduction: Although meningioma is the most common non-glial tumor of intracranial space, primary extra cranial meningioma is rare and comprises less than 2% of all meningioma. Case Presentation: We report a case of slowly progressing extracranial meningioma that was presented in a young adult woman. The tumor was asymptomatic but large enough to cause cosmetic discomfort. Patient underwent successful and complete surgical resection of her tumor and eventually fully recovered. Conclusions: Primary Extracranial Meningiomas (PEMs) without intracranial origin are very rare and because of their slow growing nature are initially managed by primary care physicians.

show abstract

“…In order to develop a better understanding of these tumours and to establish a comprehensive classification scheme for them, Lang et al [24] analysed a series of patients from the M.D. Anderson Cancer Centre (MDACC) and reviewed all cases reported in the literature since the use of CT scanning.…”

Section: Discussionmentioning

confidence: 99%

Giant intraosseous meningioma mimicking fibrous dysplasia

Huscher¹,

Öhlschlegel²,

Fournier

2016

CRCP

View full text Add to dashboard Cite

We illustrate a case of a giant primary intraosseous meningiomas (PIMs) with optic nerve compression treated by partial resection. A 48-year-old female presented with visual disturbances exophthalmus, diplopia and eye pain due to optic nerve compression. The patient had a past history of fibrous dysplasia treated surgically with partial resection by ENT in 2010. Histology confirmed the diagnosis. Two years later she presented with further decrease in visual acuity and diffuse hyperostosis. In this context she underwent a neurosurgical procedure consisting in craniotomy and further partial resection of the lesion including optic canal decompression. The second pathological examination demonstrated an extensive meningioma (WHO grade I) of the skull base.We recommend that in cases of diffuse hyperostosis the differential diagnosis include diffuse intraosseous meningioma. If complete surgical resection is not achievable, a biopsy to confirm the diagnosis is recommended. Treatment options include complete or partial resection followed by adjuvant radiotherapy.Key Words: Skull base, Meningioma, Hyperostosis, Fibrous dysplasia CASE REPORTA 48-year-old woman presented with a 3-year history of progressive right sided visual disturbance, exophthalmus, diplopia and eye pain. The patient underwent a cranial CT scan which showed a diffuse bilateral frontal and skull base hyperostosis, especially evident on the right side, and extending bilaterally from the sphenoid bones, down to the clinoid processes, orbits, temporal bones and the right frontal bone as seen in Figure 1. The right optic nerve was displaced with narrowing of the optic canal. These findings were consistent with fibrous dysplasia. Diffuse hyperostosis could also be consistent with an osteosarcoma, although this was less likely. The mass effect of the tumor involving both orbits caused compression of the eye muscles with subsequent exophthalmos, also more evident on the right side. The general practitioner referred the patient to an ophthalmologist who diagnosed exophthalmos with compressive optic nerve atrophy, decreased vision and secondary glaucoma. The ophthalmologist then referred the patient to an ENT doctor.The patient underwent surgical decompression of the right orbit via a transethmoidal, transsphenoidal and transpalpebral approach. During the operation, visualization of the orbital content was inadequate and bleeding from the bone prevented completion of the planned operation. The ENT suggested a second operation via a right subfrontal craniotomy to further decompress the orbit and the optic nerve. The first histopathological analysis seemed to confirm the suspicion of fibrous dysplasia and the patient was discharged. Ophthalmological and radiological follow-up was conducted via CT and MRI.

show abstract

Primary extradural meningiomas: a report on nine cases and review of the CT-era literature

Abstract: Defining a tumor as a PEM is dependent on the tumor's relation to the dura mater and the extent and direction of its growth. Classification of PEMs as calvarial or extracalvarial and as convexity or skull base lesions correlates well with clinical outcome.

Cited by 194 publications

References 93 publications

Cross Sectional Imaging of Solitary Lesions of the Neurocranium

Cross Sectional Imaging of Solitary Lesions of the Neurocranium

Primary Calvarial Meningioma

Giant intraosseous meningioma mimicking fibrous dysplasia

Contact Info

Product

Resources

About