Lymphoplasmacyte-Rich Meningioma With Atypical Invasive Nature —Case Report—

Hidenori NOHARA; Kazuhide FURUYA; Nobutaka KAWAHARA; Akira IIJIMA; Kyoko YAKO; Junji SHIBAHARA; Takaaki KIRINO

doi:10.2176/nmc.47.32

Case Reports

Lymphoplasmacyte-Rich Meningioma With Atypical Invasive Nature

—Case Report—

Hidenori NOHARA, Kazuhide FURUYA, Nobutaka KAWAHARA, Akira IIJIMA, Kyoko YAKO, Junji SHIBAHARA, Takaaki KIRINO

Author information

Keywords: epithelial membrane antigen, ¹⁸F-2-fluoro-2-deoxy-D-glucose positron emission tomography, Ki-67, lymphoplasmacyte-rich meningioma, vimentin

JOURNAL OPEN ACCESS

2007 Volume 47 Issue 1 Pages 32-35

DOI https://doi.org/10.2176/nmc.47.32

Details

Abstract

A 12-year-old boy presented with a lymphoplasmacyte-rich (LPR) meningioma in the posterior fossa. The tumor was subtotally removed. Histological examination showed the tumor had invaded the normal brain tissue despite its benign grade in the World Health Organization classification. The Ki-67 staining index using MIB-1 monoclonal antibody was relatively high. ¹⁸F-2-fluoro-2-deoxy-D-glucose positron emission tomography revealed high uptake in the tumor. These findings indicate the atypical nature of LPR meningioma.

Corresponding author

Register with J-STAGE for free!