Cerebral tumor with extensive rhabdoid features and a favorable prognosis: Case report

Shigeo Ohba, Kazunari Yoshida, Yuichi Hirose, Eiji Ikeda, Yoichi Nakazato, Takeshi Kawase

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1 Citation (Scopus)

Abstract

This 32-year-old woman, 27 weeks pregnant, harbored a cystic mass with a solid component in the left frontal lobe. Histologically, the lesion was hypercellular and contained a diffuse sheet of eosinophilic cells of various sizes. The cells were almost round and had a few prominent, eccentrically placed, hyperchromatic nuclei of various sizes. Immunohistochemically, the tumor was reactive for vimentin, epithelial membrane antigen, cytokeratin AE1/ AE3, smooth muscle actin, and BAF47/INI-1, and negative for glial fibrillary acidic protein, neurofilament protein, S100 protein, CK7, CK20, HMB-45, MIC2, and Bcl-2. The Ki 67 labeling index was 4.2%. Comparative genomic hybridization analysis revealed aberrations of the chromosomal copy number of +7 and -10. This tumor could not be categorized according to the present World Health Organization classification. Results of staining with glial fibrillary acidic protein were not consistent with a glioma, and staining with INI-1 was inconsistent with atypical teratoid/rhabdoid tumor. The tumor was therefore designated as a "cerebral tumor with extensive rhabdoid features.".

Original languageEnglish
Pages (from-to)492-496
Number of pages5
JournalJournal of neurosurgery
Volume111
Issue number3
DOIs
Publication statusPublished - 2009

Keywords

  • Atypical teratoid tumor
  • Comparative genomic hybridization
  • Rhabdoid tumor

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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  • Cite this

    Ohba, S., Yoshida, K., Hirose, Y., Ikeda, E., Nakazato, Y., & Kawase, T. (2009). Cerebral tumor with extensive rhabdoid features and a favorable prognosis: Case report. Journal of neurosurgery, 111(3), 492-496. https://doi.org/10.3171/2008.11.JNS08776