AI Article Synopsis
- A rare case of an intraparenchymal meningioma without dural attachment was reported, showing it can resemble cavernous malformations.
- The patient, a 42-year-old man, had seizures and his scans initially suggested a cavernous malformation, but surgery revealed a WHO Grade 1 meningioma in the right parietal lobe.
- The study highlights that meningiomas can occur anywhere in the brain and can mimic other conditions, stressing the importance of careful preoperative diagnosis.
Article Abstract
Introduction: A primary intraparenchymal meningioma located in the subcortical region of the brain without a dural attachment is extremely rare. To the best of our knowledge, this is the first report showing that meningioma can mimic cavernous malformations.
Case Presentation: We present the case of a 42-year-old German man who presented to our institution with seizure. Both computed tomography and magnetic resonance imaging scans showed characters of an intra-axial subcortical lesion with a 'popcorn' appearance and hemosiderin deposits in the right parietal lobe. The initial diagnosis was cavernous malformation. Intraoperatively, the lesion presented as a subcortical mass that had no connection to the dura or the ventricle. The histological diagnosis showed a WHO Grade 1 'raddled' psammomatous meningioma with extensive metaplastic ossification. A literature review of 29 cases of intraparenchymal meningiomas regarding their clinical presentations, location and management was performed.
Conclusions: Meningiomas can be found in any region of the brain with and without dural attachment. Intraparenchymal meningiomas can have multiple entities mimicking their presentation. Caution must be used regarding the preoperative differential diagnosis.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4320455 | PMC |
| http://dx.doi.org/10.1186/1752-1947-8-467 | DOI Listing |
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