Primary intraosseous meningiomas of the skull

Liang, Changhong; Naiyin, C.; Yuehuan, G.; Lianzhong, Z.

doi:10.1016/s0009-9260(97)80333-9

Cited by 57 publications

(54 citation statements)

References 4 publications

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“…7 Other authors, however, would say that dural invasion precludes a diagnosis of intraosseous meningioma. 8 In our case, the main part of the tumor was located in the skull, so we considered that this tumor was primarily an intraosseous meningioma.…”

Section: Discussionmentioning

confidence: 95%

Atypical intraosseous osteolytic meningioma mimicking calvarial metastasis

Cheng

Chang

Chio

et al. 2012

Formosan Journal of Surgery

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Meningiomas are common benign intracranial neoplasms. Among the subtypes of the meningiomas, primary intraosseous meningiomas are the most uncommon. The authors report a 68-year-old woman who has had headache, dizziness, and a progressively enlarged mass in the forehead for 2 months. Computed tomography of the brain showed an osteolytic skull lesion with brain and scalp invasion. A complete systemic survey for metastatic tumors was negative. The patient underwent Simpson grade I tumor resection via the frontotemporal approach, followed by cranioplasty with bone cement. The pathologic examination revealed atypical meningioma. Postoperatively, she received adjuvant fractionated conformal brain radiotherapy. The result was satisfactory. In this report, in addition to presenting the clinical manifestation and treatment of the patient, the authors emphasize the importance of considering atypical intraosseous meningioma in the differential diagnosis of osteolytic skull tumors.

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Section: Discussionmentioning

confidence: 95%

Atypical intraosseous osteolytic meningioma mimicking calvarial metastasis

Cheng

Chang

Chio

et al. 2012

Formosan Journal of Surgery

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“…[1,2] The tumors are typically either the osteoblastic or osteolytic subtype, the majority of primary intraosseous meningiomas are of osteoblastic type. [6,7] Radiological differential diagnosis of the osteoblastic subtype includes fibrous dysplasia, osteoma, osteosarcoma, and Paget's disease. Fibrous dysplasia usually stops growing after puberty, whereas primary intraosseous meningiomas typically appear on later life stage and continue to grow slowly.…”

Section: Discussionmentioning

confidence: 99%

“…Fibrous dysplasia usually stops growing after puberty, whereas primary intraosseous meningiomas typically appear on later life stage and continue to grow slowly. [6] The characteristic MRI appearance of the usual intraosseous meningioma, demonstrating homogenously dense Gd enhancement of the tumor, may help distinguish this lesion from osteoma (nonenhancing), osteosarcoma (irregular contours, heterogeneous signal and enhancement) and Paget disease (heterogeneous signal, nonenhancing). [2,4] In the present case, the lesion was showed well-defined, homogenous bony mass on skull X-ray and CT, hypointensity on T1-and T2-weighted images and was not enhanced after Gd contrast administration on MRI, as like a typical cranial osteoid osteoma.…”

Section: Discussionmentioning

confidence: 99%

Unusual primary intraosseous meningioma, mimicking cranial osteoid osteoma: A radiological clue to the differential diagnosis

Izumo¹,

Matsuo²,

Yokoyama³

et al. 2017

IJNS

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Primary intraosseous meningioma of the skull is rare. We report a patient who presented with a history of an enlarging scalp mass over 30 years. Noncontrast computed tomography demonstrated a densely calcified right frontal extra-axial mass lesion. Magnetic resonance imaging of the lesion demonstrated heterogeneous hypointensity on T1-and T2-wieghted images and without evidence of gadolinium contrast enhancement. And the mass showed heterogeneous isointensity on diffusion weighted image. Preoperative diagnosis for the lesion was osteoid osteoma of the right frontoparietal bone, and total excision of the tumor was carried out. Histological examination showed intraosseous meningothelial meningioma. We should be aware of the primary intraosseous meningioma showing the classical radiological findings of cranial osteoid osteoma. The radiological clue for the accurate diagnosis is discussed.

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“…The classification of these lesions is based on the presence (primary lesion) or absence (secondary lesion) of a connection with the central nervous system. The following ectopic locations of meningiomas have been reported: skull, [1][2][3] scalp, [4] orbit, [5] paranasal sinuses, [6] nasopharynx, [6,7] neck [8,9] and skin; [10,11] occasionally in the lung, [12] mediastinum, [13] adrenal gland, [9] paraspinal region, [14] and even in a finger. [10] These primary extradural meningiomas (PEM) are rare tumours accounting for less than 2% of all meningiomas.…”

Section: Discussionmentioning

confidence: 99%

Giant intraosseous meningioma mimicking fibrous dysplasia

Huscher¹,

Öhlschlegel²,

Fournier

2016

CRCP

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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.

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Primary intraosseous meningiomas of the skull

Cited by 57 publications

References 4 publications

Atypical intraosseous osteolytic meningioma mimicking calvarial metastasis

Atypical intraosseous osteolytic meningioma mimicking calvarial metastasis

Unusual primary intraosseous meningioma, mimicking cranial osteoid osteoma: A radiological clue to the differential diagnosis

Giant intraosseous meningioma mimicking fibrous dysplasia

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