Genetic landscape of meningioma.

abstract：:A 55-year old female was referred to the Department of Neurosurgery, Kitasato Hospital, because of a hearing impairment. Neuroimaging revealed a typical meningioma attached to the falx in the right frontal region. During surgery, an encapsulated, circumscribed, reddish-gray, slightly hard tumor attached to the falx wa...

journal_title：Brain tumor pathology

authors： Miyajima Y,Oka H,Utsuki S,Hagiwara H,Inukai M,Kijima C,Hara A,Yasui Y,Kawano N,Fujii K

更新日期：2013-01-01 00:00:00

abstract：:A 53-year-old woman was found to have a tumor in the pineal region. Histologically, Homer-Wright rosettes were sporadically distributed in a diffuse proliferation of round tumor cells that were immunoreactive for synaptophysin and chromogranin. A few perivascular pseudorosettes were also present, and the perivascular ...

journal_title：Brain tumor pathology

authors： Utsuki S,Kawano N,Oka H,Fukushima Y,Kondo K,Tanizaki Y,Yashui Y,Fujii K,Yagishita S

更新日期：2003-01-01 00:00:00

abstract：:Investigations on the NAB2-STAT6 fusion gene in solitary fibrous tumors (SFTs) and hemangiopericytomas (HPCs) have increased since its discovery in 2013. Although several SFTs reported without NAB2-STAT6 fusion gene analysis, we reviewed 546 SFTs/HPCs with NAB2-STAT6 fusion gene analysis in this study and investigated...

journal_title：Brain tumor pathology

authors： Nakada S,Minato H,Nojima T

更新日期：2016-07-01 00:00:00

abstract：:Pleomorphic xanthoastrocytoma (PXA) has been considered an astrocytic tumor with a relatively favorable prognosis. However, PXA cases having several recurrent patterns with poor prognosis have been reported in recent years, and a new concept of anaplastic PXA has been proposed. The present case was a 59-year-old woman...

journal_title：Brain tumor pathology

authors： Asano K,Miyamoto S,Kubo O,Kikkukawa T,Yagihashi A,Ohkuma H

更新日期：2006-04-01 00:00:00

abstract：:We report four cases of high-grade astrocytoma with a BRAF V600E mutation, ATRX inactivation, and CDKN2A/B homozygous deletion. Children to young adults aged 3-46 presented with a well demarcated contrast-enhancing mass in the supratentorial area. Pathological examination revealed packed growth of short spindle to rou...

journal_title：Brain tumor pathology

authors： Murakami C,Yoshida Y,Yamazaki T,Yamazaki A,Nakata S,Hokama Y,Ishiuchi S,Akimoto J,Shishido-Hara Y,Yoshimoto Y,Matsumura N,Nobusawa S,Ikota H,Yokoo H

更新日期：2019-07-01 00:00:00

abstract：:Hemangioblastoma is composed of neoplastic stromal cells and a prominent capillary network. To date, the identity of stromal cells remains unclear. Mesenchymal stem cells can give rise to committed vascular progenitor cells, and ephrin-B2/EphB4 and Notch signaling have crucial roles in these steps. The aim of our stud...

journal_title：Brain tumor pathology

authors： Takada S,Hojo M,Takebe N,Tanigaki K,Miyamoto S

更新日期：2018-10-01 00:00:00

abstract：:Although tissue confirmation is essential for a diagnosis of primary central nervous system large B-cell lymphoma (PCNSBL), accurate assessment may still be difficult, even when tissue is obtained. We report a 59-year-old man, first diagnosed as multiple sclerosis by open biopsy at another institution, who was then co...

journal_title：Brain tumor pathology

authors： Utsuki S,Oka H,Miyazaki T,Yamazaki T,Yasui Y,Fujii K,Kawano N,Tokuyama W,Iwabuchi K,Okayasu I,Yagishita S

更新日期：2010-04-01 00:00:00

abstract：:Epithelioid glioblastomas (E-GBMs) are rare, highly aggressive tumors consisting of closely packed tumor cells with smooth, round cell borders and abundant eosinophilic cytoplasm. They tend to affect younger patients compared with conventional GBM. BRAF V600E mutation is characteristically found in approximately 50% o...

journal_title：Brain tumor pathology

authors： Funata N,Nobusawa S,Yamada R,Shinoura N

更新日期：2016-01-01 00:00:00

abstract：:Recent studies on gliomas have shown frequent alterations in the alpha-thalassemia/mental retardation syndrome X-linked gene (ATRX). This study was designed to determine whether ATRX status correlates with uptake of 11C-methionine in WHO grades II and III gliomas. Sixty-two patients underwent 11C-methionine positron e...

journal_title：Brain tumor pathology

authors： Ogishima T,Tamura K,Kobayashi D,Inaji M,Hayashi S,Tamura R,Nariai T,Ishii K,Maehara T

更新日期：2017-01-01 00:00:00

abstract：:We observed the histopathological and physiological characteristics of adrenocorticotropic hormone (ACTH)-secreting adenoma cells derived from a rapidly growing pituitary adenoma, which have firm cell attachment and well-preserved hormonal function in a relatively longterm culture. Corticotrophs, obtained from a 43-ye...

journal_title：Brain tumor pathology

authors： Abe T,Tachikawa T,Sasaki A,Taniyama M,Okamura Y,Izumiyama H,Matsumoto K

更新日期：2000-01-01 00:00:00

abstract：:A 37-year-old man, a hepatitis B virus carrier due to mother-to-child transmission, had a medical examination in September 2008 in nearby hospitals due to anorexia and weight loss. He was transported to our hospital because computed tomography (CT) detected intracranial lesions, and he had a positive human immunodefic...

journal_title：Brain tumor pathology

authors： Utsuki S,Oka H,Abe K,Osawa S,Yamazaki T,Yasui Y,Fujii K

更新日期：2011-02-01 00:00:00

abstract：:Ollier disease (OD) and Maffucci syndrome are rare conditions due to a post-zygotic somatic mutation that results in mosaicism. In addition to enchondromas and hemangiomas, some of these patients also develop other unrelated tumors, such as gliomas, that harbor IDH mutations, suggesting that an IDH mutation is a commo...

journal_title：Brain tumor pathology

authors： Tan CL,Vellayappan B,Wu B,Yeo TT,McLendon RE

更新日期：2018-10-01 00:00:00

abstract：:Intraoperative rapid diagnosis has been a useful neurosurgery tool for maximal resection and minimal morbidity. However, only a few studies have been conducted regarding diagnostic accuracy and associated problems. The present study reviews our experience in treating patients and investigates the accuracy and problems...

journal_title：Brain tumor pathology

authors： Uematsu Y,Owai Y,Okita R,Tanaka Y,Itakura T

更新日期：2007-01-01 00:00:00

abstract：:Despite recent advances in the diagnosis and treatment of glioblastomas, patient outcomes for these highly malignant tumors remain poor. Research into the molecular pathology of glioblastoma has uncovered various genetic changes that contribute to malignancy. Some of the identified molecular markers--such as loss of h...

journal_title：Brain tumor pathology

authors： Mizoguchi M,Kuga D,Guan Y,Hata N,Nakamizo A,Yoshimoto K,Sasaki T

更新日期：2011-07-01 00:00:00

abstract：:We describe a case of dural angioleiomyoma (ALM) of the middle cranial fossa. A 62-year-old man was referred to our center for fracture of the left clavicle because of a fall, and he had a sudden seizure during admission. The mass was completely resected. The tumor base was located at the bottom of the temporal lobe i...

journal_title：Brain tumor pathology

authors： Zhou Z,Yu M,Yang S,Zhou J,Sun R,Yang G

更新日期：2013-04-01 00:00:00

abstract：:A 43-year-old woman who had undergone breast cancer surgery 1 year previously complained of headache and nausea. Her brain computed tomography (CT) scan and magnetic resonance imaging (MRI) showed a well-circumscribed, heterogeneously enhanced tumor in the right thalamus. She underwent gross total resection of the tum...

journal_title：Brain tumor pathology

authors： Akimoto J,Namatame H,Haraoka J,Kudo M

更新日期：2005-01-01 00:00:00

abstract：:The clinical and histological characteristics of oligodendroglioma and oligoastrocytoma were investigated in patients, mainly adults with supratentorial tumors, who were treated with surgery and radiotherapy, and with chemotherapy for recurrent, anaplastic tumors, or both. The median survival time was 13.2 years for o...

journal_title：Brain tumor pathology

authors： Tamura M,Zama A,Kurihara H,Kano T,Imai H,Ishiuchi S,Iwai T,Naito I

更新日期：1997-01-01 00:00:00

abstract：:Wilms' tumour-1 (WT-1) protein m-RNA was recently demonstrated in meningiomas, suggesting the potential application of WT-1 immunotherapy in these tumours. The aim of the present study was to analyze the immunohistochemical expression of WT-1 protein, its correlation with the clinico-pathological variables and associa...

journal_title：Brain tumor pathology

authors： Barresi V,Caffo M,Branca G,Vitarelli E,Tuccari G

更新日期：2015-07-01 00:00:00

abstract：:Congenital malignant gliomas are rare brain tumors about which few reports have been published. We present the clinical course and genetic alterations in an infant with a congenital malignant glioma detected incidentally by ultrasonography at 36 weeks. The tumor occupied the right temporoparietal region, extended to t...

journal_title：Brain tumor pathology

authors： Yamashita S,Ryu S,Miyata S,Uchinokura S,Yokogami K,Uehara H,Moriguchi S,Iwakiri T,Marutsuka K,Ikenoue M,Sawa D,Yamada N,Kodama Y,Takeshima H

更新日期：2012-04-01 00:00:00

abstract：:The objective of this study is to clarify clinical significance of the H3F3A K27M mutation (H3K27M) and analyze the correlation between H3K27M, H3K27me3 status, and EZH2 expression and prognosis in spinal cord gliomas. Patients with spinal cord diffuse glioma regardless of World Health Organization (WHO) grade underwe...

journal_title：Brain tumor pathology

authors： Ishi Y,Takamiya S,Seki T,Yamazaki K,Hida K,Hatanaka KC,Ishida Y,Oda Y,Tanaka S,Yamaguchi S

更新日期：2020-07-01 00:00:00

abstract：:Recent reports have suggested an important clinical role for hypermethylation of the O(6)-methylguanine-DNA-methyltransferase (MGMT) promoter in patients with glioblastomas. Whether MGMT protein expression is correlated with promoter hypermethylation and patient outcomes, however, has not been elucidated. Here we desc...

journal_title：Brain tumor pathology

authors： Araki Y,Mizoguchi M,Yoshimoto K,Shono T,Amano T,Nakamizo A,Suzuki SO,Iwaki T,Sasaki T

更新日期：2011-02-01 00:00:00

abstract：:Accumulating evidence suggests that tissue hypoxia and apoptosis play important roles in the malignant progression of brain tumors. We investigated the relationship of 14-3-3zeta (an apoptosis-related protein), HIF-1α, and VEGF immunohistochemistry, and evaluated the prognostic value of their expression in human brain...

journal_title：Brain tumor pathology

authors： Cao WD,Kawai N,Miyake K,Zhang X,Fei Z,Tamiya T

更新日期：2014-01-01 00:00:00

abstract：:Detection of mutations in the isocitrate dehydrogenase 1 (IDH1) gene is useful for accurate diagnosis of lower grade gliomas, as described in the 2016 World Health Organization classification of tumors of the central nervous system. Conventional analysis tools, including Sanger DNA sequencing and immunohistochemistry,...

journal_title：Brain tumor pathology

authors： Hirano M,Ohka F,Maeda S,Chalise L,Yamamichi A,Aoki K,Kato A,Tanahashi K,Motomura K,Nishimura Y,Hara M,Shinjo K,Kondo Y,Wakabayashi T,Natsume A

更新日期：2018-04-01 00:00:00

abstract：:Glioblastoma with a primitive neuronal component (GBM-PN) was renamed from glioblastoma with primitive neuroectodermal tumor-like component (GBM-PNET) in the new WHO classification of tumors of the central nervous system in 2016. GBM-PN is a rare variant of glioblastoma. There were not so many publications on the inve...

journal_title：Brain tumor pathology

authors： Xu G,Zheng H,Li JY

更新日期：2019-07-01 00:00:00

abstract：:The incidence of hemorrhagic onset in pilocytic astrocytoma and pilomyxoid astrocytoma, and the clinical and histological characteristics, were compared to other types of neuroepithelial tumors or nonhemorrhagic pilocytic astrocytoma by retrospective review of 445 consecutive neuroepithelial tumors treated at our inst...

journal_title：Brain tumor pathology

authors： Shibahara I,Kanamori M,Kumabe T,Endo H,Sonoda Y,Ogawa Y,Watanabe M,Tominaga T

更新日期：2009-01-01 00:00:00

abstract：:L-type amino acid transporter 1 (LAT1), a neutral amino acid transport agent, is essential for the transport of large neutral amino acids. LAT1 also corresponds to tumor-associated gene-1 (TA1), an oncofetal antigen that is expressed primarily in fetal tissues and cancer cells such as glioma cells. We have investigate...

journal_title：Brain tumor pathology

authors： Nawashiro H,Otani N,Uozumi Y,Ooigawa H,Toyooka T,Suzuki T,Katoh H,Tsuzuki N,Ohnuki A,Shima K,Shinomiya N,Matsuo H,Kanai Y

更新日期：2005-01-01 00:00:00

abstract：:Low-density lipoprotein receptor-related protein/alpha 2-macroglobulin receptor (LRP) has been proposed to mediate the cellular uptake and clearance of inactivated protease-inhibitor complexes in regulating proteinase activity at the cell surface, which is necessary for cellular migration and invasive processes. In th...

journal_title：Brain tumor pathology

authors： Yamamoto M,Ikeda K,Ohshima K,Tsugu H,Kimura H,Tomonaga M

更新日期：1998-01-01 00:00:00

abstract：:The aim of our study was to clarify the expression and gene copy number levels of protein phosphatase 1D magnesium-dependent, delta isoform (PPM1D), which is thought to be a regulator of the p53 protein in meningiomas of all three different WHO grades. Genomic DNA and mRNA were extracted from frozen tissues of meningi...

journal_title：Brain tumor pathology

authors： Fukami S,Riemenschneider MJ,Kohno M,Steiger HJ

更新日期：2016-07-01 00:00:00

abstract：:Diffuse gliomas are highly infiltrative intracranial tumors, but there are few useful markers for detecting infiltrating glioma cells in the surrounding brain tissue. Doublecortin (DCX) is a microtubule-associated protein (MAP) that plays a crucial role in neuroblast migration. It was recently demonstrated that DCX is...

journal_title：Brain tumor pathology

authors： Masui K,Mawatari SY,Suzuki SO,Iwaki T

更新日期：2008-01-01 00:00:00

abstract：:With the use of RT-PCR (reverse transcriptase-polymerase chain reaction), Northern blot analysis, and Western blot analysis, seven primary brain lymphomas were examined for the state of the MMACI tumor suppressor gene. Nucleotide analysis of RT-PCR clones revealed no abnormality in the MMAC1 coding sequence in each ca...

journal_title：Brain tumor pathology

authors： Ding X,Endo S,Zhang SJ,Saito T,Kouno M,Kuroiwa T,Washiyama K,Kumanishi T

更新日期：2001-01-01 00:00:00