Anaplastic meningioma with papillary, rhabdoid, and epithelial features: a case report.

被引:22
作者
Saito A. [1 ]
Nakazato Y. [1 ]
Yoshii Y. [1 ]
Hyodo A. [1 ]
Harakuni T. [1 ]
Toita T. [1 ]
Ogawa K. [1 ]
Horikawa K. [1 ]
Terada Y. [1 ]
Kinjo S. [1 ]
Minei S. [1 ]
机构
[1] Department of Neurosurgery, Faculty of Medicine, University of the Ryukyus, Nishihara, Okinawa
关键词
Rhabdoid meningioma; Papillary meningioma; Anaplastic meningioma; Vimentin;
D O I
10.1007/BF02479430
中图分类号
学科分类号
摘要
A 74-year-old man manifested disturbed consciousness and right hemiparesis. Computed tomography revealed a left frontal parasagittal meningeal tumor with extensive peritumoral brain edema and skull invasion. Subtotal removal was performed. Five years later, he underwent two more operations of massive recurrences. Pathological studies revealed anaplastic meningioma with two different histological areas. One was an epithelial and meningothelial area, and the other was a papillary and rhabdoid area. In the papillary and rhabdoid area, small tumor cells with a high nucleus/cytoplasm ratio proliferated densely around the dilated central capillaries with a pseudopapillary pattern. Many rhabdoid cells (vimentin ++, cytokeratin AE1/AE3 +, epithelial membrane antigen [EMA] + +) tended to be distributed far from the central capillaries. There were many mitotic figures near the central vessels. Dense MIB1-positive nuclei were also observed near the central vessels. The trabecular pattern of the tumor cells in the epithelial area was quite different from the histological features of chordoid meningioma.
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页码:155 / 159
页数:4
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