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  • Title: Choroid plexus papilloma of the cerebellopontine angle.
    Author: Khoddami M, Gholampour Shahaboddini R.
    Journal: Arch Iran Med; 2010 Nov; 13(6):552-5. PubMed ID: 21039014.
    Abstract:
    The cerebellopontine angle is an extremely rare site for the growth of a choroid plexus papilloma. The clinicoradiological diagnosis of this tumor in the cerebellopontine angle is difficult because of its rarity in addition to a nonspecific clinical presentation and radiological features. Herein, we report the case of a 49-year-old woman with complaints of headache and features of raised intracranial pressure, whose computerized tomography (CT) and magnetic resonance imaging (MRI) were suggestive of acoustic neuroma or meningioma with hydrocephalus. Histology revealed multiple arborizing papillae with a central fibrovascular core, lined by cubo-columnar cells. The cells showed diffuse immunoreactivity for pancytokeratin, S100 protein, synaptophysin, and vimentin, as well as focal expression of glial fibrillary acidic protein, epithelial membrane antigen, and cytokeratin 7. English medical literature is also reviewed.
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