Radiographically distinct variant of pilocytic astrocytoma: a case series.
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY(2011)
摘要
The imaging findings of pilocytic astrocytomas are classically described as a cyst with an enhancing mural nodule. We report 2 unusual cases of multicystic cerebellar midline masses that were proven to be pilocytic astrocytomas. The uniqueness of the imaging features in these cases may represent an important variant of pilocytic astrocytomas. Recognition of this variant may prevent an unnecessary workup to exclude other etiologies such as parasitic infection (ie, cysticercosis) or cystic metastatic disease.
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关键词
CT,MR,atypical pilocytic astrocytoma,multicystic cerebellar masses
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