منابع مشابه
Extraaxial ependymoma of the posterior fossa.
We report an unusual case of an extraaxial ependymoma of the posterior fossa in an adult. MR imaging showed a heterogeneously enhancing extraaxial mass with a cystic component. Ependymoma should be included in the differential diagnosis of uncommon extraaxial masses of the posterior fossa.
متن کاملTreatment implications of posterior fossa ependymoma subgroups
Posterior fossa ependymoma comprises two distinct molecular entities, ependymoma_posterior fossa A (EPN_PFA) and ependymoma_posterior fossa B (EPN_PFB), with differentiable gene expression profiles. As yet, the response of the two entities to treatment is unclear. To determine the relationship between the two molecular subgroups of posterior fossa ependymoma and treatment, we studied a cohort o...
متن کاملAn unusual presentation of posterior fossa ependymoma in a child.
To cite: Crawford JR, Newbury RO, Friedman JR. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2013-010267 DESCRIPTION A 15-year-old girl with a history of congenital nystagmus presented with newly recognised hyperkinetic tongue movements on protrusion without dysphagia, dysphonia or palatal myoclonus (see online supplementary video). Contrast-enhanced MRI reveal...
متن کاملPosterior Fossa Ependymoma: Unusual Extension into the Internal Auditory Canal in a 32-year-old Woman
Ependymomas are relatively rare glial neoplasms that arise from ependymal cells. The majority of cases (>75%) arise from the fourth ventricle in the posterior fossa. These tumours may expand locally, extend along subarachnoid spaces, and disseminate through the cerebrospinal fluid. Sometimes, they may extend into the cerebellopontine angle and mimic the clinicoradiological appearance of an extr...
متن کاملDelineation of two clinically and molecularly distinct subgroups of posterior fossa ependymoma.
Despite the histological similarity of ependymomas from throughout the neuroaxis, the disease likely comprises multiple independent entities, each with a distinct molecular pathogenesis. Transcriptional profiling of two large independent cohorts of ependymoma reveals the existence of two demographically, transcriptionally, genetically, and clinically distinct groups of posterior fossa (PF) epen...
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ژورنال
عنوان ژورنال: Skull Base Surgery
سال: 2001
ISSN: 1531-5010,1098-9072
DOI: 10.1055/s-2001-16602