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Primary cns lymphoma

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https://www.readbyqxmd.com/read/29143277/myo-inositol-concentration-in-mr-spectroscopy-for-differentiating-high-grade-glioma-from-primary-central-nervous-system-lymphoma
#1
Hiroaki Nagashima, Takashi Sasayama, Kazuhiro Tanaka, Katsusuke Kyotani, Naoko Sato, Masahiro Maeyama, Masaaki Kohta, Junichi Sakata, Yusuke Yamamoto, Kohkichi Hosoda, Tomoo Itoh, Ryohei Sasaki, Eiji Kohmura
It is sometimes difficult to distinguish gliomas from other tumors on routine imaging. In this study, we assessed whether 3-T magnetic resonance spectroscopy (MRS) with LCModel software might be useful for discriminating glioma from other brain tumors, such as primary central nervous system lymphomas (PCNSLs) and metastatic tumors. A total of 104 cases of brain tumor (66 gliomas, 20 PCNSLs, 6 metastatic tumors, 12 other tumors) were preoperatively investigated with short echo time (35 ms) single-voxel 3-T MRS...
November 15, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29135607/targeting-the-perivascular-niche-in-brain-tumors
#2
Giorgio Seano
PURPOSE OF REVIEW: Brain tumors are composed of primary tumors of the central nervous system, such us glioblastoma (GBM), and secondary metastatic tumors, such as melanoma, non-Hodgkin lymphoma as well as lung and breast cancers. Brain tumors are highly deadly, and unfortunately not many improvements have been achieved to improve the survival of patients with brain tumors. Chemoradiation resistance is one of the most clinically relevant challenges faced in patients with brain tumors. The perivascular niche is one of the most relevant microenvironment hubs in brain tumors...
November 14, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/29128836/characterization-of-liposome-containing-spions-conjugated-with-anti-cd20-developed-as-a-novel-theranostic-agent-for-central-nervous-system-lymphoma
#3
S Saesoo, S Sathornsumetee, P Anekwiang, C Treetidnipa, P Thuwajit, S Bunthot, W Maneeprakorn, L Maurizi, H Hofmann, Ruktanonchai Uracha Rungsardthong, N Saengkrit
Despite advances in neuroscience cancer research during the past decades, the survival of cancer patients has only marginally improved and the cure remains unlikely. The blood-brain barrier (BBB) is a major obstacle protecting the entry of therapeutic agents to central nervous system, especially for primary central nervous system lymphoma (PCNSL). Thus, the use of small nanoparticle as a drug carrier may be new strategies to overcome this problem. In this study, we fabricated liposome consisting of superparamagnetic iron oxide nanoparticles (SPIONs) functionalized with anti-CD20 (Rituximab; RTX)...
November 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29126866/advances-in-diagnosis-and-management-of-diffuse-large-b-cell-lymphoma
#4
REVIEW
Fernando Cabanillas, Bijal Shah
The management of diffuse large B-cell lymphoma (DLBCL) has been gradually evolving since the discovery of its 2 major forms, the germinal center B-like (GCB) and activated B-cell (ABC) types. Although the reference standard for the identification of these cell types is considered gene expression profiling (GEP), currently the only method commercially available is immunohistochemistry (IHC). The application of various IHC-based algorithms and their correlation with GEP and clinical outcome are discussed. Because of the adverse prognostic implications of the non-GCB type and its potential effects on treatment selection, the recently revised World Health Organization classification has included these biologic cell types...
November 7, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/29119031/pediatric-pulmonary-epstein-barr-virus-positive-diffuse-large-b-cell-lymphoma-a-case-report-and-review-of-the-literature
#5
Eric X Wei, Roberto F Silva, James D Cotelingam, Rodney E Shackelford
Non-Hodgkin's lymphoma (NHL) is a common malignancy of childhood; however, a lung primary presentation is an uncommon finding, as is finding an association with the Epstein-Barr virus (EBV). We report the case of a 23-month-old female who developed EBV-associated diffuse large B-cell lymphoma (DLBCL) that was initially thought to be pneumonia. Extensive tissue necrosis, focal angioinvasion, and angiodestruction were observed. She was refractory to various therapy regimens, subsequently developed DLBCL in the central nervous system, and eventually expired...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/29113178/immunohistochemical-profile-and-prognostic-significance-in-primary-central-nervous-system-lymphoma-analysis-of-89-cases
#6
Jing Liu, Yaming Wang, Yuantao Liu, Zhe Liu, Qu Cui, Nan Ji, Shengjun Sun, Bingxu Wang, Yajie Wang, Xuefei Sun, Yuanbo Liu
The majority of primary central nervous system lymphomas (PCNSLs) are diffuse large B cell lymphoma, characterized by poor prognosis. In the present study, the expression of cluster of differentiation (CD)10, B cell lymphoma (BCL)-6, multiple myeloma-1 (MUM-1), BCL-2, CD138 and Ki-67 was analyzed by immunohistochemistry in 89 Chinese PCNSL cases, and the potential prognostic significance was evaluated. CD10, BCL-6, MUM-1, BCL-2 and CD138 were positive in 16.9 (15/89), 51.7 (46/89), 92.1 (82/89), 73.3 (63/86) and 0% (0/65) of all cases, respectively...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29110994/spinal-cord-involvement-in-primary-cns-lymphoma
#7
Arunmozhi Maran Elavarasi, Deepa Dash, Anand R Warrier, Rohit Bhatia, Lalit Kumar, Deepali Jain, Manjari Tripathi
LETM is a common syndrome and the diagnosis of CNS lymphoma is not usually considered in the list of differentials. Primary CNS lymphoma can present as longitudinally extensive transverse myelopathy. Failure to suspect and evaluate leads to delay in diagnosis and treatment. PCNSL may be non contrast enhancing on gadolinium enhanced MRI. CSF analysis should be done preferably before starting corticosteroids as it is usual practice in treatment of transverse myelitis, as steroids may lead to transient improvement and mask the correct diagnosis...
October 27, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29110485/discovery-of-aromatic-carbamates-that-confer-neuroprotective-activity-by-enhancing-autophagy-and-inducing-the-anti-apoptotic-protein-b-cell-lymphoma-2-bcl-2
#8
Nihar Kinarivala, Ronak Patel, Rose-Mary Boustany, Abraham J Al-Ahmad, Paul C Trippier
Neurodegenerative diseases share certain pathophysiological hallmarks that represent common targets for drug discovery. In particular, dysfunction of proteostasis and the resultant apoptotic death of neurons, represent common pathways for pharmacological intervention. A library of aromatic carbamate derivatives based on the clinically available drug flupirtine was synthesized to determine a structure-activity relationship for neuroprotective activity. Several derivatives were identified that possess greater protective effect in human induced pluripotent stem cell-derived neurons, protecting up to 80% of neurons against etoposide-induced apoptosis at concentrations as low as 100 nM...
November 7, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29104150/differentiating-between-primary-central-nervous-system-lymphomas-and-glioblastomas-combined-use-of-perfusion-and-diffusion-weighted-magnetic-resonance-imaging
#9
Keishi Makino, Toshinori Hirai, Hideo Nakamura, Jun-Ichiro Kuroda, Naoki Shinojima, Hiroyuki Uetani, Mika Kitajima, Shigetoshi Yano
OBJECTIVE: The purpose of this study was to determine whether combined diffusion-weighted imaging (DWI) and dynamic susceptibility contrast-enhanced perfusion-weighted imaging (PWI) magnetic resonance imaging (MRI) can be used to differentiate between common malignant brain tumors, including lymphomas and high-grade gliomas. METHODS: We evaluated 87 patients with histologically confirmed brain tumors, including 33 primary central nervous system lymphomas (PCNSLs) and 54 glioblastomas (GBMs)...
November 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29103980/extranodal-marginal-zone-lymphoma-of-the-central-nervous-system
#10
REVIEW
Adanma Ayanambakkam, Sami Ibrahimi, Khalid Bilal, Mohamad A Cherry
Extranodal marginal zone lymphoma of the central nervous system (CNS EMZBL) is a rare disease. We present a review of the literature and describe its presentation, differential diagnosis, treatment options, and outcomes. Systematic search of PubMed, Medline, and Embase databases via the Ovid engine for primary articles and case reports yielded 37 unduplicated peer-reviewed articles of CNS EMZBL. We identified 69 cases in these articles and 1 unreported case at our institution, which were included for this review's analysis...
September 23, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/29074098/lorlatinib-in-non-small-cell-lung-cancer-with-alk-or-ros1-rearrangement-an-international-multicentre-open-label-single-arm-first-in-man-phase-1-trial
#11
Alice T Shaw, Enriqueta Felip, Todd M Bauer, Benjamin Besse, Alejandro Navarro, Sophie Postel-Vinay, Justin F Gainor, Melissa Johnson, Jorg Dietrich, Leonard P James, Jill S Clancy, Joseph Chen, Jean-François Martini, Antonello Abbattista, Benjamin J Solomon
BACKGROUND: Most patients with anaplastic lymphoma kinase (ALK)-rearranged or ROS proto-oncogene 1 (ROS1)-rearranged non-small-cell lung cancer (NSCLC) are sensitive to tyrosine kinase inhibitor (TKI) therapy, but resistance invariably develops, commonly within the CNS. This study aimed to analyse the safety, efficacy, and pharmacokinetic properties of lorlatinib, a novel, highly potent, selective, and brain-penetrant ALK and ROS1 TKI with preclinical activity against most known resistance mutations, in patients with advanced ALK-positive or ROS1-positive NSCLC...
October 23, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/29070753/a-case-of-primary-central-nervous-system-anaplastic-lymphoma-kinase-positive-anaplastic-large-cell-lymphoma-manifested-as-a-unilateral-pachymeningits
#12
Etsuco Fujisawa, Hidehiro Shibayama, Fumi Mitobe, Fumiaki Katada, Susumu Sato, Toshio Fukutake M D
There have been 23 reports of primary central nervous system anaplastic lymphoma kinase (ALK)-positive anaplastic large cell lymphoma in the literature. Here we report the 24th case of a 40-year-old man who presented with occipital headache for one month. His contrast-enhanced brain MRI showed enhancement around the right temporal lobe, which suggested a diagnosis of hypertrophic pachymeningitis. He improved with steroid therapy. After discharge, however, he was readmitted with generalized convulsive seizures...
October 26, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/29070116/-effect-of-b-cell-differentiation-markers-on-the-prognosis-of-primary-central-nervous-system-lymphoma
#13
Xiang-Lei Chen, Xiao-Yun Li, Wei Wang
OBJECTIVE: To investigate the value of B-cell differentiation markers in prognosis evaluation of 119 patients with primary CNS lymphoma(PCNSL). METHODS: The expressions of BCL-2, BCL-6, CD10 and MUM1/IRF4 protein were determined by immunohistochemistry, and their relationship with the prognosis of primary central nervous system lymphoma was analyzed. RESULTS: Univariate analysis showed that BCL-6 positive means shorter PFS (P=0.047) and OS (P=0...
October 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29070115/-curative-efficacy-of-high-dose-mtx-combined-with-rituxan-for-treatment-primary-cns-lymphoma
#14
Kun Mou, Wei-Wei Gu, Cui-Hua Gu, Jiu-De Qi
OBJECTIVE: To explore the curative efficacy of methotrexate(MTX) combined with rituxan for treating patients with primary central nervous system(CNS) lymphoma. METHODS: One hundred patients with primary CNS lymphoma in our hospital were randomly divided into targeted treatment group(50 cases) and traditional treatment group (50 cases). Targeted treatment group adopted the therapy of high-dose methotrexate combined with rituxan, the traditional treatment group adopted the high-dose methotrexate combined with whole brain radiotherapy...
October 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29067721/the-perivascular-microenvironment-in-epstein-barr-virus-positive-primary-central-nervous-system-lymphoma-the-role-of-programmed-cell-death-1-and-programmed-cell-death-ligand-1
#15
Yasuo Sugita, Takuya Furuta, Koichi Ohshima, Satoru Komaki, Junko Miyoshi, Motohiro Morioka, Hideyuki Abe, Takanori Nozawa, Yukihiko Fujii, Hitoshi Takahashi, Akiyoshi Kakita
It has been shown that high expression of certain immune checkpoint molecules, including those of the programmed death protein 1/programmed death ligand 1 (PD-1/PD-L1) axis, can be utilized to regulate immunosuppression in the microenvironment of malignant neoplasms. For the purpose of clarifying the immune-escape mechanism of primary central nervous system lymphomas (PCNSLs), particularly in Epstein-Barr virus (EBV)-positive cases, markers for PD-1, PD-L1, tumor-associated macrophages (TAMs), and tumor-infiltrating lymphocytes (TILs) in 39 surgical specimens of PCNSLs (17 EBV-positive, 22 EBV-negative) were investigated by immunohistochemistry...
October 24, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29065048/primary-central-nervous-system-lymphoma-of-optic-chiasma-endoscopic-endonasal-treatment
#16
Evin Singar Ozdemir, Ali Erdem Yildirim, Aslihan Yavas Can
BACKGROUND: Isolated primary central nervous system lymphoma arising from anterior visual pathway is very rare. PATIENT PRESENTATION: A 76-year-old immunocompetent previously healthy man presented bilateral decreased visual acuity in 1 month. Pituitary magnetic resonans imaging (MRI) showed a lobulated mass with homogeneous enhancement after gadolinium administration that arising from optic chiasm suggested that inflammatory disease or an optic glioma. The patient underwent an extended endoscopic endonasal transsphenoidal surgery...
October 23, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29063643/primary-central-nervous-system-extranodal-nasal-type-natural-killer-t-cell-lymphoma-with-cd20-expression
#17
Dujuan Li, Fangfang Fu, Lifei Lian
We report a unique case of primary CNS extranodal natural killer/T-cell lymphoma (PCNS ENKTCL) with CD20 expression and the monoclonal rearrangement of Ig heavey chain (IgH) gene. Resection specimens were evaluated using HE-stained sections, immunohistochemistry, in situ hybridization and PCR. Histopathologic examination, immunohistochemistry and molecular studies showed the intermediate-sized lymphoma cells expressing CD2, CD3ε, granzyme B, TIA-1, CD20 and Epstein-Barr virus-encoded RNA, with germline T-cell receptor gene and the monoclonal rearrangement of IgH gene...
October 24, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29054815/whole-brain-radiotherapy-or-autologous-stem-cell-transplantation-as-consolidation-strategies-after-high-dose-methotrexate-based-chemoimmunotherapy-in-patients-with-primary-cns-lymphoma-results-of-the-second-randomisation-of-the-international-extranodal-lymphoma
#18
Andrés J M Ferreri, Kate Cwynarski, Elisa Pulczynski, Christopher P Fox, Elisabeth Schorb, Paul La Rosée, Mascha Binder, Alberto Fabbri, Valter Torri, Eleonora Minacapelli, Monica Falautano, Fiorella Ilariucci, Achille Ambrosetti, Alexander Roth, Claire Hemmaway, Peter Johnson, Kim M Linton, Tobias Pukrop, Jette Sønderskov Gørløv, Monica Balzarotti, Georg Hess, Ulrich Keller, Stephan Stilgenbauer, Jens Panse, Alessandra Tucci, Lorella Orsucci, Francesco Pisani, Alessandro Levis, Stefan W Krause, Hans J Schmoll, Bernd Hertenstein, Mathias Rummel, Jeffery Smith, Michael Pfreundschuh, Giuseppina Cabras, Francesco Angrilli, Maurilio Ponzoni, Martina Deckert, Letterio S Politi, Jürgen Finke, Michele Reni, Franco Cavalli, Emanuele Zucca, Gerald Illerhaus
BACKGROUND: The International Extranodal Lymphoma Study Group-32 (IELSG32) trial is an international randomised phase 2 study that addresses two key clinical questions in the treatment of patients with newly diagnosed primary CNS lymphoma. Results of the first randomisation have demonstrated that methotrexate, cytarabine, thiotepa, and rituximab (called the MATRix regimen) is the induction combination associated with significantly better outcome compared with the other induction combinations tested...
October 17, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29050112/-clinical-pathologic-characteristics-and-treatment-outcomes-of-19-relapsed-pediatric-b-cell-lymphoma
#19
S Huang, L Jin, J Yang, Y L Duan, M Zhang, C J Zhou, X L Ma, Y H Zhang
Objective: To review the clinical-pathology characteristics of 19 relapsed pediatric mature B cell lymphoma and to find the risk factors for recurrence and the feasible treatment after relapse. Method: Data of 212 pediatric B cell lymphomas cases in Beijing Children's Hospital from January 2006 to June 2015 were collected retrospectively. All the patients were treated according to the B cell lymphoma regimen of Beijing Children's Hospital. During the study period, 19 of 212 cases were relapsed; the clinio-pathological characteristics of relapsed patients before treatment and after relapse were analyzed retrospectively, the treatment outcomes after relapse were summarized and the patients were followed-up...
October 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29044419/myc-bcl2-co-expression-is-a-stronger-prognostic-factor-compared-with-the-cell-of-origin-classification-in-primary-cns-dlbcl
#20
COMPARATIVE STUDY
Qian-Yun Shi, Xiao Feng, Wei Bao, Jie Ma, Jing-Huan Lv, Xuan Wang, Qiu Rao, Qun-Li Shi
Primary central nervous system (CNS) diffuse large B-cell lymphoma (DLBCL) is a subtype of DLBCL with an unfavorable prognosis and a poor response to the treatment. As we know, DLBCL is stratified into germinal center B-cell (GCB)-like and activated B-cell (ABC)-like subtypes with different prognosis according to their gene-expression characteristics. In this study, we analyzed a case series of 77 patients with primary CNS DLBCL. A difference in prognosis of GCB-like and ABC-like subtypes was noticed, but no statistical significance was found...
November 1, 2017: Journal of Neuropathology and Experimental Neurology
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