Histopathological study of spinal meningioma originating from the arachnoid villi
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Yu-ichiro Ohnishi Koichi Iwatsuki Eiichi Morii Maki Kobayashi Yumiko Hori Takashi Moriwaki Masahiro Ishihara Kazunori Yoshimura Masao
- چاپ و سال / کشور: 2011
Description
Although the histogenesis of meningiomas remains unclear, it is believed that arachnoid cells are the most likely origin of this type of neoplasm. Further, little attention has been paid to the histopathology of spinal meningiomas arising from the arachnoid villi. We came across a case of spinal meningioma that was locally attached to the arachnoid membrane. The associated arachnoid villi were investigated by light microscopy and immunohistochemical analysis. We confirmed the presence of tumor cells under the fibrous capsule that forms the outer component of the arachnoid villi. Tumor cells grew out from the apical portion of the arachnoid villi. Furthermore, immunohistochemical study suggested that arachnoid cells made the transition to tumor cells on the arachnoid cell layer.
Brain Tumor Pathol (2011) 28:77–81 DOI 10.1007/s10014-010-0003-3 Received: 12 May 2010 / Accepted: 8 September 2010 / Published online: 8 January 2011 The Japan Society of Brain Tumor Pathology 2011
