Computed Tomography and Magnetic Resonance Appearance of Sporadic Meningioangiomatosis Correlated With Pathological Findings

Yao, Zhenwei; Yin, Wei; Zee, Chi Shing; Feng, Xiaoyuan; Sun, Hui

doi:10.1097/rct.0b013e31819343e1

Cited by 25 publications

(16 citation statements)

References 13 publications

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“…28,29 MA has a more gyriform hyperintensity on MRI fluid-attenuated inversion recovery sequences and tends to be smaller and have more heterogeneous contrast enhancement than meningiomas. 30 However, imaging alone cannot confirm the diagnosis, and biopsy is still necessary. Most cases have been followed with serial imaging, without significant clinical or tumor progression.…”

Section: Discussionmentioning

confidence: 99%

Pediatric Meningeal Tumors of the Sylvian Fissure Region without Dural Attachment: A Series of Three Patients and Review of the Literature

Donovan

Thavapalan

2016

Surg J

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Pediatric meningeal tumors are rare, but those in the region of the sylvian fissure without dural attachment are extremely rare, with only 24 previously reported cases in the world literature. In this series, we report two additional cases of sylvian fissure meningioma without dural attachment and one case of perisylvian meningioangiomatosis in the medial temporal lobe. All three patients presented with complex partial seizures, but the diagnosis was delayed in each case because the symptoms were misinterpreted to be behavioral rather than epileptic. The seizures were eventually confirmed with electroencephalogram, and subsequent imaging showed enhancing masses within the sylvian fissure region that were at least partially calcified in all three cases. Each patient underwent craniotomy. In the first case, gross total resection was achieved, and in the second case, a small residual portion of tumor was densely calcified and adherent to the middle cerebral artery branches. Both of these were World Health Organization (WHO) grade I meningiomas. The third patient underwent biopsy and limited resection of meningioangiomatosis. No dural attachments were noted in any of the tumors, but one of the meningiomas was intraparenchymal in location, surrounding the sylvian fissure in both the frontal and temporal lobes, which has been described in only a small number of these cases previously. The patients underwent pre-and postsurgical neuropsychiatric testing and did not experience any significant cognitive deficits. At 10-year follow-up, the patient who had gross total resection of the tumor has had no recurrence and is seizure-free without anticonvulsant medications. The incompletely resected intraparenchymal meningioma in the second patient recurred after 5 years, however, and at repeat surgery was found to have transformed to a WHO grade II tumor. Radiation therapy was delivered and the tumor has been stable for 2 years, but the patient continues to have occasional seizures despite medication. The patient with meningioangiomatosis has had no further growth and has excellent control of seizures but remains on medication. We review the clinical presentation of these rare tumors and discuss the treatment, outcomes, and possible relationship of meningiomas to meningioangiomatosis.

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Section: Discussionmentioning

confidence: 99%

Pediatric Meningeal Tumors of the Sylvian Fissure Region without Dural Attachment: A Series of Three Patients and Review of the Literature

Donovan

Thavapalan

2016

Surg J

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“…MA can be even more diverse in its presentation on imaging because of the different morphologies that lesion can assume; for example, MA can be gyriform [2, 3, 23–30], or can be associated with a cystic component [3, 11, 13, 19, 25, 31–33]. Some studies proposed certain properties that may help clinician in diagnosing lesion via imaging.…”

Section: Discussionmentioning

confidence: 99%

“…Some studies proposed certain properties that may help clinician in diagnosing lesion via imaging. Yao et al concluded that gyriform hyperintensity on a FLAIR sequence is the main MRI feature of MA [30]. Rokes et al suggested the possibility of using magnetic resonance spectroscopy and fluorodeoxyglucose positron emission tomography in helping with the diagnosis of MA [34].…”

Section: Discussionmentioning

confidence: 99%

Meningioangiomatosis: A Case Report and Literature Review Emphasizing Diverse Appearance on Different Imaging Modalities

Kashlan

LaBorde

Davison

et al. 2011

Case Reports in Neurological Medicine

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Purpose. Meningioangiomatosis (MA) is a rare, benign lesion that commonly mimics other intracranial malformations in clinical presentation and appearance on imaging. The case presented and the literature review performed highlight the importance of combining MRI and CT results to better characterize intracranial lesions and including MA on the list of differential diagnoses of patients presenting with seizures. Methods. The case described is of a 19-year-old male with a 10-year history of worsening seizures refractory to multiple drug regimens. MRI revealed an atypical vascular malformation. The patient underwent surgical resection of the epileptogenic cortex. Results. Although the radiologic impression of the lesion was a vascular malformation, pathological examination revealed MA. A literature search performed highlights the variability of the appearance of MA on CT and MRI and suggests the utility of the T2 GRE sequence in illustrating the presence of calcification and, in a lesion with other characteristic features, the diagnosis of MA. Conclusion. MA can be a difficult diagnosis to make based on imaging findings alone. However, in a patient with a characteristic history and presentation, the presence of a calcified mass on CT and MRI brain susceptibility artifact on a T2 GRE sequence may suggest MA.

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“…It is usually a single cortical lesion; however, multifocal non-cortical cases have been reported [6,7]. Sporadic meningioangiomatosis is usually a single lesion occurring in young adults or children, who present with seizures or headache [6,8].…”

Section: Discussionmentioning

confidence: 99%

Meningioangiomatosis in a 5-Year-Old Boy Presenting with Intractable Seizures

Alexiou

Moschovi²,

Stefanaki³

et al. 2011

Pediatr Neurosurg

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A 5-year-old boy with a history of epilepsy underwent brain magnetic resonance imaging (MRI) because of an increase in seizure frequency. Brain MRI demonstrated a left frontal lesion. The patient was operated upon, and gross total excision was performed. The histological diagnosis was meningioangiomatosis. On follow-up examination 10 years later, the patient was free of seizures and without any evidence of tumor recurrence. Meningioangiomatosis is a rare benign hamartomatous lesion that is associated with seizures. Complete excision is associated with favorable long-term outcome. The novelty of the present case is the young age of the child at presentation and the curative role of surgery considering the long-term follow-up.

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Computed Tomography and Magnetic Resonance Appearance of Sporadic Meningioangiomatosis Correlated With Pathological Findings

Cited by 25 publications

References 13 publications

Pediatric Meningeal Tumors of the Sylvian Fissure Region without Dural Attachment: A Series of Three Patients and Review of the Literature

Pediatric Meningeal Tumors of the Sylvian Fissure Region without Dural Attachment: A Series of Three Patients and Review of the Literature

Meningioangiomatosis: A Case Report and Literature Review Emphasizing Diverse Appearance on Different Imaging Modalities

Meningioangiomatosis in a 5-Year-Old Boy Presenting with Intractable Seizures

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