نتایج جستجو برای: papillary meningioma m0337837

تعداد نتایج: 28352  

2017
Hiroyuki Takeda Masashi Okada Kenta Kuramoto Shuhei Suzuki Hirotsugu Sakaki Tomomi Sanomachi Shizuka Seino Takashi Yoshioka Hirofumi Hirano Kazunori Arita Chifumi Kitanaka

Currently, there is no established therapeutic option for high-grade meningioma recurring after surgery and radiotherapy, and few chemotherapeutic agents are in development for the treatment of high-grade meningioma. Here in this study, we screened a panel of chemotherapeutic agents for their possible antitumor activity in high-grade meningioma and discovered that high-grade meningioma cells sh...

2017
Kenyu Ito Shiro Imagama Kei Ando Kazuyoshi Kobayashi Yoji Shido Yoshida Go Hideyuki Arima Shunsuke Kanbara Takanori Hirose Yukihiro Matsuyama Yoshihiro Nishida Naoki Ishiguro

Meningioma is typically considered to be a benign tumor. Malignant transformation and metastasis of meningiomas are rare. Moreover, most meningiomas are intracranial, and there are few reports on intraspinal meningiomas. This report aimed to describe the clinical features and pathological findings of a case of malignant transformation and distant metastasis of intraspinal meningioma, with a rev...

Journal: :The Malaysian journal of medical sciences : MJMS 2017
Kamalanathan Palaniandy Mohammad Saffari Mohammad Haspani Norzaini Rose Mohd Zain

BACKGROUND Meningioma is the commonest primary intracranial tumour in adults. Excision is curative for low grade meningioma, whereas high-grade meningioma requires adjuvant therapy following surgery. Several studies have examined the association between peritumoural brain Edema - a common feature in meningioma - and histological grading with mixed results. The present study attempted to elucida...

Journal: :Journal of neurosurgery 2015
Leland Rogers Igor Barani Marc Chamberlain Thomas J Kaley Michael McDermott Jeffrey Raizer David Schiff Damien C Weber Patrick Y Wen Michael A Vogelbaum

Evolving interest in meningioma, the most common primary brain tumor, has refined contemporary management of these tumors. Problematic, however, is the paucity of prospective clinical trials that provide an evidence-based algorithm for managing meningioma. This review summarizes the published literature regarding the treatment of newly diagnosed and recurrent meningioma, with an emphasis on out...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Nicole Comtesse Andrea Zippel Sascha Walle Dominik Monz Christina Backes Ulrike Fischer Jens Mayer Nicole Ludwig Andreas Hildebrandt Andreas Keller Wolf-Ingo Steudel Hans-Peter Lenhof Eckart Meese

There are numerous studies on the immune response against malignant human tumors. This study was aimed to address the complexity and specificity of humoral immune response against a benign human tumor. We assembled a panel of 62 meningioma-expressed antigens that show reactivity with serum antibodies of meningioma patients, including 41 previously uncharacterized antigens by screening of a feta...

Journal: :AJNR. American journal of neuroradiology 1986
C Manelfe P Lasjaunias J Ruscalleda

The goal of preoperative embolization of intracranial meningiomas is to facilitate their surgical removal by reducing tumor vascularity and decreasing blood loss during surgery. This study is based on personal experience with about 100 embolized meningiomas and on the experience of others. Embolization is performed during the same session as diagnostic angiography. The appropriate embolic mater...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2008
S-Y Yang C-K Park S-H Park D G Kim Y S Chung H-W Jung

OBJECTIVES To evaluate patient outcome and investigate the prognostic factors of high-grade meningiomas by adopting the 2000 World Health Organization (WHO) classification system. METHODS Between 1986 and 2004, 74 patients were diagnosed with high-grade meningioma: 33 with atypical and 41 with anaplastic meningioma. The mean follow-up was 58.5 months. We reclassified all surgical specimens, a...

2016
Zhaoyin Wang Weijia Wang Shan Xu Shanshan Wang Yi Tu Yifeng Xiong Jinhong Mei Chunliang Wang

Meningiomas are common types of adult nerve system tumors. Although most cases are considered benign, due to its high rate of recurrence and easy malignant progression to anaplastic meningioma they present a puzzle for the current treatment. The HER-2 oncogene has important value for meningioma cells development and progression. So far, little is known about the effect on the exact underlying s...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2010
Preetha Rajaraman Alina V Brenner Gila Neta Ruth Pfeiffer Sophia S Wang Meredith Yeager Gilles Thomas Howard A Fine Martha S Linet Nathaniel Rothman Stephen J Chanock Peter D Inskip

BACKGROUND The etiology of meningioma, the second most common type of adult brain tumor in the United States, is largely unknown. Prior studies indicate that history of immune-related conditions may affect the risk of meningioma. METHODS To identify genetic markers for meningioma in genes involved with innate immunity, we conducted an exploratory association study of 101 meningioma cases and ...

2014
Malak S. Abedalthagafi Parker H. Merrill Wenya Linda Bi Robert T. Jones Marc L. Listewnik Shakti H. Ramkissoon Aaron R. Thorner Ian F. Dunn Rameen Beroukhim Brian M. Alexander Priscilla K. Brastianos Joshua M. Francis Rebecca D. Folkerth Keith L. Ligon Paul Van Hummelen Azra H. Ligon Sandro Santagata

Meningiomas are a diverse group of tumors with a broad spectrum of histologic features. There are over 12 variants of meningioma, whose genetic features are just beginning to be described. Angiomatous meningioma is a World Health Organization (WHO) meningioma variant with a predominance of blood vessels. They are uncommon and confirming the histopathologic classification can be challenging. Giv...

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