ABSTRACT
Extraneural metastases of ependymoma are very rare, and have been reported in the lungs, lymph nodes, pleura, mediastinum, liver, diaphragmatic muscle, and bone. We describe the radiological findings of pathologically proven lung metastases from an anaplastic ependymoma. The tumor which arose in the posterior fossa was first diagnosed in 2007 when first surgical resection was performed outside our institute. Multiple operations were performed after that due to tumor relapse. Multiple lung nodules were discovered incidentally during a VP shunt survey. Biopsy from the lung nodules displayed identical histomorphology to the primary brain tumor.
Subject(s)
Ependymoma/secondary , Infratentorial Neoplasms/pathology , Lung Neoplasms/secondary , Ventriculoperitoneal Shunt , Biopsy , Child , Ependymoma/diagnostic imaging , Ependymoma/surgery , Humans , Incidental Findings , Infratentorial Neoplasms/surgery , Lung Neoplasms/diagnostic imaging , Lung Neoplasms/surgery , Male , Neoplasm Recurrence, Local/surgery , Reoperation , Tomography, X-Ray ComputedABSTRACT
We report a case of intracerebral cystic schwannoma in the temporal fossa manifested as a gradually worsening headache in a 49-years-old woman. Computed Tomography (CT) and magnetic resonance imaging (MRI) showed a left temporal partly cystic, partly solid mass. The preoperative diagnosis was astrocytoma or glioblastoma multiforme (GBM), but microscopic examination of the mass showed the characteristic pattern with cellular Antony A component. Immunohistochemically, the tumor was positive for S-100 protein. These findings are consistent with a schwannoma. Intracerebral schwannomas not related to cranial nerves are rare and most reported cases involved young patients.
