{"id":"334f3c8d-b070-41b9-910c-b6d6338fb0e4","slug":"clear-cell-meningioma-masquerading-as-trigeminal-schwannoma","title":"Clear cell meningioma masquerading as trigeminal schwannoma","authors":["Pravin Salunke","Barun K. Pal","Sameer Vyas","Bishan D. Radotra"],"abstract":"Background: Clear cell meningioma (CCM) is a rare and aggressive variant of meningioma, typically found in the cerebello-pontine angle (CPA) or cauda equina. This case report describes a CCM in the CPA that presented with characteristics mimicking a trigeminal schwannoma, including a dumbbell shape and erosion of the petrous bone. Methods: A 14-year-old female patient with neurological symptoms underwent imaging studies, including contrast-enhanced CT and MRI, which revealed a lobulated mass in the left cerebro-pontine angle cistern. The patient subsequently underwent subtotal excision of the tumor through the left retromastoid approach. Results: Histopathological examination confirmed the diagnosis of clear cell meningioma, WHO grade II, characterized by round to polygonal cells with clear cytoplasm. The patient experienced complications, including injury to the superior petrosal sinus, leading to venous infarction and subsequent death a week post-surgery. Conclusion: This case underscores the potential for clear cell meningiomas to mimic trigeminal schwannomas in their presentation and imaging characteristics. It raises questions about the aggressive behavior of certain meningioma variants and their clinical implications. Keywords: clear cell meningioma, trigeminal schwannoma, cerebello-pontine angle, histopathology, surgery, neurological symptoms, tumor excision","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/334f3c8d-b070-41b9-910c-b6d6338fb0e4/featured/hero-1782420977339.png","publishDate":"2012-08-21T00:00:00.000Z","doi":"10.4103/2152-7806.99940","categories":["Original Article"],"fullTextUrl":"http://sni.wpengine.com/wp-content/uploads/2015/05/3420/SNI-3-93.pdf"}