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Intracranial tumors

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https://www.readbyqxmd.com/read/29156679/remote-intracranial-recurrence-of-idh-mutant-gliomas-is-associated-with-tp53-mutations-and-an-8q-gain
#1
Shunsuke Nakae, Takema Kato, Kazuhiro Murayama, Hikaru Sasaki, Masato Abe, Masanobu Kumon, Tadashi Kumai, Kei Yamashiro, Joji Inamasu, Mitsuhiro Hasegawa, Hiroki Kurahashi, Yuichi Hirose
Most IDH mutant gliomas harbor either 1p/19q co-deletions or TP53 mutation; 1p/19q co-deleted tumors have significantly better prognoses than tumors harboring TP53 mutations. To investigate the clinical factors that contribute to differences in tumor progression of IDH mutant gliomas, we classified recurrent tumor patterns based on MRI and correlated these patterns with their genomic characterization. Accordingly, in IDH mutant gliomas (N = 66), 1p/19 co-deleted gliomas only recurred locally, whereas TP53 mutant gliomas recurred both locally and in remote intracranial regions...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156329/clinical-outcomes-of-primary-intracranial-malignant-melanoma-and-metastatic-intracranial-malignant-melanoma
#2
Joonho Byun, Eun Suk Park, Seok Ho Hong, Young Hyun Cho, Young-Hoon Kim, Chang Jin Kim, Jeong Hoon Kim, Seungjoo Lee
OBJECTIVES: Primary intracranial malignant melanoma (PIMM) is extremely rare central nervous system (CNS) tumor and known for only composed 0.07% of the CNS tumors. PIMM composed only 1% of malignant melanoma and accordingly their clinical behavior and prognosis are not well documented. So, herein, we report our experience of pathologically proven PIMM, and compared their clinical characteristics and outcome with metastatic intracranial malignant melanoma (MIMM). PATIENTS AND METHODS: Our institutional database was reviewed for patients who diagnosed as PIMM and MIMM pathologically between 1996-2016...
November 17, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29153364/application-of-arterial-spin-labeling-perfusion-mri-to-differentiate-benign-from-malignant-intracranial-meningiomas
#3
Xin J Qiao, Hyun Grace Kim, Danny J J Wang, Noriko Salamon, Michael Linetsky, Ali Sepahdari, Benjamin M Ellingson, Whitney B Pope
PURPOSE: Differentiating WHO grade I-III of meningioma by non-invasive imaging is challenging. This study investigated the potential of MR arterial spin labeling (ASL) to establish tumor grade in meningioma patients. MATERIAL AND METHODS: Pseudo-continuous ASL with 3D background suppressed gradient and spin echo (GRASE) was acquired on 54 patients with newly diagnosed or recurrent intracranial meningioma. Perfusion patterns characterized in CBF color maps were independently evaluated by three neuroradiologists blinded to patient history, and correlated with tumor grade from histo-pathological review...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29151909/bkm120-sensitizes-c6-glioma-cells-to-temozolomide-via-suppression-of-the-pi3k-akt-nf-%C3%AE%C2%BAb-mgmt-signaling-pathway
#4
Mao Li, Ruo Fei Liang, Xiang Wang, Qing Mao, Yan Hui Liu
Glioblastoma is the most common type of malignant intracranial tumor in adults. Temozolomide (TMZ), as the first-line chemotherapy agent used in patients with glioblastoma, has demonstrated different effects in patients due to the expression of O6-methylguanine-DNA methyltransferase (MGMT) which is able to repair the DNA lesions induced by TMZ. The phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway is over-activated in glioblastoma and has been revealed to be potentially implicated in resistance to TMZ...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29151668/bulging-brains
#5
J Weickenmeier, P Saze, C A M Butler, P G Young, A Goriely, E Kuhl
Brain swelling is a serious condition associated with an accumulation of fluid inside the brain that can be caused by trauma, stroke, infection, or tumors. It increases the pressure inside the skull and reduces blood and oxygen supply. To relieve the intracranial pressure, neurosurgeons remove part of the skull and allow the swollen brain to bulge outward, a procedure known as decompressive craniectomy. Decompressive craniectomy has been preformed for more than a century; yet, its effects on the swollen brain remain poorly understood...
December 2017: Journal of Elasticity
https://www.readbyqxmd.com/read/29151533/acute-urinary-retention-induced-by-chemical-meningitis-which-occurred-due-to-a-ruptured-dermoid-cyst
#6
Keiko Yamagami, Naoko Kakuta, Kaori Seki, Ryota Nakamura, Yusuke Hanioka, Tomoyuki Nakamura, Hitoshi Goto
Meningitis retention syndrome (MRS), a rare complication of aseptic meningitis, can present with acute urinary retention. The rupture of a dermoid cyst, which is a benign intracranial tumor, can sometimes induce chemical meningitis. We herein present a case of chemical meningitis and acute urinary retention that was induced by the rupture of a dermoid cyst. The patient experienced urinary retention for approximately 60 days, and then made a complete recovery thereafter. This is the first reported case of acute urinary retention due to the rupture of a dermoid cyst...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29147815/atp-binding-cassette-transporters-limit-the-brain-penetration-of-wee1-inhibitors
#7
Mark C de Gooijer, Levi C M Buil, Jos H Beijnen, Olaf van Tellingen
Introduction Wee1 is an important kinase involved in the G2 cell cycle checkpoint and frequently upregulated in intracranial neoplasms such as glioblastoma (GBM) and diffuse intrinsic pontine glioma (DIPG). Two small molecules are available that target Wee1, AZD1775 and PD0166285, and clinical trials with AZD1775 have already been started. Since GBM and DIPG are highly invasive brain tumors, they are at least to some extent protected by the blood-brain barrier (BBB) and its ATP-binding cassette (ABC) efflux transporters...
November 17, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/29147635/global-and-targeted-pathway-impact-of-gliomas-on-white-matter-integrity-based-on-lobar-localization
#8
David R Ormond, Shawn D'Souza, John A Thompson
Primary brain tumors comprise 28% of all tumors and 80% of malignant tumors. Pathophysiology of high-grade gliomas includes significant distortion of white matter architecture, necrosis, the breakdown of the blood brain barrier, and increased intracranial pressure. Diffusion tensor imaging (DTI), a diffusion weighted imaging technique, can be used to assess white matter architecture. Use of DTI as a non-invasive pathophysiological tool to analyze glioma impact on white matter microstructure has yet to be fully explored...
September 7, 2017: Curēus
https://www.readbyqxmd.com/read/29146721/development-of-a-function-blocking-antibody-against-fibulin-3-as-targeted-reagent-for-glioblastoma
#9
Mohan Sobhana Nandhu, Prajna Behera, Vivek Bhaskaran, Sharon L Longo, Lina M Barrera-Arenas, Sadhak Sengupta, Diego J Rodriguez-Gil, E Antonio Chiocca, Mariano S Viapiano
PURPOSE: We sought a novel approach against glioblastomas (GBM) focused on targeting signaling molecules localized in the tumor extracellular matrix (ECM). We investigated fibulin-3, a glycoprotein that forms the ECM scaffold of GBMs and promotes tumor progression by driving Notch and NF-kB signaling. EXPERIMENTAL DESIGN: We used deletion constructs to identify a key signaling motif of fibulin-3. A monoclonal antibody (mAb428.2) was generated against this epitope and extensively validated for specific detection of human fibulin-3...
November 16, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29145182/pathological-yawning-laughing-and-crying
#10
Olivier Walusinski
Yawning, laughing, and crying are normal physiological behaviors of humans in good health. As with all physiological behaviors, their deregulation can reveal disorders. Pathological yawning occurs in salvos of 10-20 successive yawns, and the number of yawns per day can exceed one hundred. After listing the functional etiologies, we will give the clinical keys for differentiating the most serious causes: iatrogenic, tumors, strokes, amyotrophic lateral sclerosis, and intracranial hypertension. Sudden, uncontrollable episodes of emotional display involving pathological laughing and crying (PLC) may be encountered in various neurological diseases: amyotrophic lateral sclerosis, multiple system atrophy (cerebellar), cerebrovascular disease, traumatic brain injuries, mass lesions in the cerebellopontine junction, and epilepsy...
2018: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/29143958/intraspinal-mesenchymal-chondrosarcoma-report-of-a-pediatric-case-and-literature-review
#11
Angela Di Giannatale, Marta Colletti, Ida Russo, Valentina Ferruzzi, Vito Andrea Dell' Anna, Raffaele Cozza, Giovanna Stefania Colafati, Raffaella Messina, Angela Mastronuzzi, Rita De Vito, Giuseppe Maria Milano
PURPOSE: Mesenchymal chondrosarcoma (MCS) is an aggressive variant of chondrosarcoma and is a rare tumor, particularly within the pediatric population. Commonly, MCS originates in the bone, but it can also arise in extraskeletal sites, such as the brain and the intraspinal area. Due to the rarity of this tumor, there are no guidelines for its optimal treatment. METHODS: We report a case of intradural extramedullary MCS, located at the T11-T12 level, in a 14-year-old male...
November 15, 2017: Tumori
https://www.readbyqxmd.com/read/29143274/clinical-features-surgical-management-and-prognostic-factors-of-secretory-meningiomas-a-single-center-case-series-of-149-patients
#12
Xiaogang Tao, Kun Wang, Jinqian Dong, Zonggang Hou, Zhen Wu, Junting Zhang, Baiyun Liu
Secretory meningioma (SM) is a rare histological subtype of the meningioma family. Few reports investigating SM have been published due to its extremely low incidence; thus, the current understanding of this disease is poor. We analyzed the incidence and clinical, radiological, pathological, and prognostic features of SM. Approximately 12,380 intracranial meningiomas were surgically resected at Beijing Tiantan Hospital between April 2008 and January 2017. All pathologically confirmed SM cases were identified...
November 15, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29143062/-intracranial-cystic-lesions
#13
REVIEW
F Ahlhelm, K Shariat, S Götschi, S Ulmer
CLINICAL PROBLEM: Intracerebral cysts are common findings in imaging of the neurocranium and are not always clinically significant. The pathological spectrum of intracerebral cysts is, however, very broad and in addition to incidental findings includes developmental disorders, malformation tumors, primary and secondary neoplasms and infectious etiologies, such as cerebral abscess formation, cysticercosis or residuals after congenital cytomegalovirus infections. Intracerebral cystic defects may be caused by inflammatory central nervous system (CNS) diseases, such as multiple sclerosis as well as by mitochondriopathies, leukodystrophy, electrolyte disturbances or osmotic demyelination syndrome or brain infarctions, e...
November 15, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29142779/-comparative-analysis-of-grade-i-vs-grade-ii-intracranial-meningiomas-in-a-retrospective-series-of-63-patients
#14
Federico Coppola, Juan Iaconis Campbell, Juan Manuel Herrero, Emilio Volpe, Tito Cersosimo
Objective: We aimed to demonstrate the differences between grade I and II (OMS classification) of intracranial meningiomas. We evaluate their location, Simpson resection grade, re-operations rate, adjuvant treatment and patient outcomes. Methods: We conduct a retrospective review of Sixty- three clinical records of patients who were diagnosed with meningiomas grade I and II (OMS) between 2009-2015 and received surgical treatment at our Hospital. We evaluated different variables such as age, sex, histological type, Simpson grade resection, location, symptoms, radiotherapy, follow-up, mortality rate and patient outcome...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29142775/-relevance-of-simpson-s-grades-in-the-resection-of-grade-i-meningiomas
#15
Pablo Ajler, Sofía Beltrame, Daniela Massa, Julian Tramontano, Matteo Baccanelli, Claudio Yampolsky
Objective: Compare the number of recurrences in patients with WHO Grade I meningiomas that underwent microsurgical resection. Introduction: In 1957 Simpson established five grades for surgical resection for intracranial meningiomas and recurrence rate. He thought that an aggressive removal of these tumors with dura and bone was necessary to cure them. Development of new diagnostic methods, advances in anatomopathology and microsurgical technique lead us to question if this scale has a value nowadays...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29139152/giant-intracranial-arteriovenous-malformation-as-the-focus-of-epileptic-seizures
#16
Mio Takayama, Kenji Hara, Aya Matsusue, Brian Waters, Natsuki Ikematsu, Masayuki Kashiwagi, Shin-Ichi Kubo
A man in his late thirties was found in a supine position in the hallway of his house. He had been diagnosed with epilepsy at approximately 20 years old. Since stopping treatment, epileptic events occurred more frequently and his condition deteriorated in the past 2 years. Autopsy revealed that head injuries were found on the left side of his head. A fracture from the left parietal bone to the anterior cranial fossa was also detected. A subdural hemorrhage (hematoma) spanned a wide range. A subarachnoid hemorrhage was also identified in the left parietal region...
November 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29139010/radiobiology-and-radiotherapy-of-brain-metastases
#17
Anuradha Thiagarajan, Yoshiya Yamada
Brain metastases are the most common intracranial tumors in adults, accounting for more than 50% of all such cases. The approach to and management of brain metastases have evolved significantly in recent years due to several reasons. These include advances in neurosurgical and radiotherapeutic techniques, improved systemic therapy options offering better systemic and intracranial disease control and prolongation of survival as a result of these improvements, making side-effects of proposed therapies (e.g. neurocognitive decline from whole brain radiotherapy) an important consideration...
November 14, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/29138018/anti-tumor-effects-of-cold-atmospheric-pressure-plasma-on-vestibular-schwannoma-demonstrate-its-feasibility-as-an-intra-operative-adjuvant-treatment
#18
Yeo Jun Yoon, Michelle J Suh, Hyun Young Lee, Hae June Lee, Eun Ha Choi, In Seok Moon, Kiwon Song
Vestibular schwannoma (VS), although a benign intracranial tumor, causes morbidities by brainstem compression. Since chemotherapy is not very effective in most Nf2-negative schwannomas, surgical removal or radiation therapy is required. However, depending on the size and site of the tumor, these approaches may cause loss of auditory or vestibular functions, and severely decrease the post-surgical wellbeing. Here, we examined the feasibility of cold atmospheric pressure plasma (CAP) as an intra-operative adjuvant treatment for VS after surgery...
November 11, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29137103/crizotinib-resistance-overcome-by-ceritinib-in-an-alk-positive-non-small-cell-lung-cancer-patient-with-brain-metastases-a-case-report
#19
Zhouyu Zhu, Ying Chai
RATIONALE: The treatment of non-small cell lung cancer (NSCLC) has now changed dramatically in recent years and anaplastic lymphoma receptor tyrosine kinase (ALK) inhibitors are developing rapidly. PATIENT CONCERNS: Here we reported a 57-year-old ALK-positive NSCLC man with brain metastases. DIAGNOSES: A case of lung adenocarcinoma with brain metastases. INTERVENTIONS: Crizotinib was administered orally at a dose of 250mg twice a day until the brain metastases were found...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137049/garcin-syndrome-caused-by-parotid-gland-adenoid-cystic-carcinoma-a-case-report
#20
Nian-Ge Xia, Yan-Yan Chen, Xin-Shi Wang, Hui-Qin Xu, Rong-Yuan Zheng
RATIONALE: Garcin syndrome is characterized by the gradual involvement, and ultimately, unilateral paralysis of at least 7 and sometimes all cranial nerves, without intracranial hypertension or any long tract signs. PATIENT CONCERNS: We report the case of a 59-year-old woman who presented with Garcin syndrome, which gradually progressed over a period of 2 years. DIAGNOSIS: A left parotid gland biopsy revealed parotid gland adenoid cystic carcinoma (PGACC) with perineural invasion of a peripheral nerve bundle and lymph node metastasis...
November 2017: Medicine (Baltimore)
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