MR Imaging Features of Anaplastic Pleomorphic Xanthoastrocytoma Mimicking High-Grade Astrocytoma
نویسندگان
چکیده
منابع مشابه
Pleomorphic xanthoastrocytoma: an atypical astrocytoma.
Pleomorphic xanthoastrocytoma (PXA) is rare primary neoplasm of brain. Despite its pleomorphic appearance, it has a relatively good prognosis. We report a case of biopsy proven pleomorphic xanthoastrocytoma in a young male who presented with visual and sensory symptoms, classical neuroimaging findings and showed remarkable recovery, post surgery. We have also reviewed recent literature focusing...
متن کاملPleomorphic xanthoastrocytoma of childhood: MR imaging and diffusion MR imaging features.
BACKGROUND AND PURPOSE Pleomorphic xanthoastrocytomas are rare astrocytic neoplasms of childhood and young adulthood. The purpose of this retrospective review was to evaluate MR imaging features of pediatric pleomorphic xanthoastrocytomas with an emphasis on diffusion MR imaging. MATERIALS AND METHODS Review of the neuro-oncology data base revealed 11 pediatric patients (range, 4.7-16.1 years...
متن کاملPleomorphic Xanthoastrocytoma with Anaplastic Features: Retrospective Case Series.
OBJECTIVE Pleomorphic xanthoastrocytoma (PXA) is a unique meningocerebral glioma with a relatively favorable prognosis. PXA also possesses a variant with anaplastic features (aPXA), which is associated with poor outcomes. To date, few studies have examined the clinicopathologic importance of these anaplastic features. METHODS From 1999-2012, 8 patients with aPXA were treated at the University...
متن کاملAnaplastic Pleomorphic Xanthoastrocytoma: Morphological and Molecular Features of Three Cases
Pleomorphic xanthoastrocytoma (PXA) is usually a low grade astrocytic tumor. However, some cases show significant mitotic activity (5 or more mitosis per 10 High Power Field) and/or necrosis. These tumors are described as pleomorphic xanthoastrocytomas with anaplastic features and display increased risk of recurrence. We aimed to evaluate histopathological, immunohistochemical and molecular fea...
متن کاملPleomorphic xanthoastrocytoma.
We report two cases of pleomorphic astrocytoma, a rare primary brain tumor with an unusually good prognosis. These lesions typically are peripherally located, partially cystic, temporal lobe masses. Dural attachment is frequent, calcifications are not. Angiography usually shows a hypovascular mass, although blood supply from the external carotid artery may be seen.
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ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2018
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a5701