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Primary central nervous system lymphoma

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https://www.readbyqxmd.com/read/29348832/clinical-and-histological-features-of-primary-testicular-diffuse-large-b-cell-lymphoma-a-single-center-experience-in-china
#1
De Zhou, Changqian Bao, Xiujin Ye, Lixia Zhu, Jingjing Zhu, Li Li, Mingyu Zhu, Xiudi Yang, Yanlong Zheng, Xianbo Huang, Mixue Xie, Wanzhuo Xie
Primary testicular lymphoma (PTL) is a rare and aggressive form of extranodal lymphoma. Approximately 80-98% of PTLs are diffuse large B-cell lymphoma (PT-DLBCL). The prognosis of DLBCL patients has improved with the addition of rituximab to systemic chemotherapy, but outcomes of PT-DLBCL remain poor. This may be explained by the high rate of relapse in the central nervous system (CNS) and contralateral testis. We analyzed 1,132 newly diagnosed DLBCL patients (37 with PT-DLBCL) who were treated at our hospital between January 2009 and December 2014...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29342201/differentiation-of-glioblastoma-multiforme-metastases-and-primary-central-nervous-system-lymphomas-using-multiparametric-perfusion-and-diffusion-mr-imaging-of-a-tumor-core-and-a-peritumoral-zone-searching-for-a-practical-approach
#2
Małgorzata Neska-Matuszewska, Joanna Bladowska, Marek Sąsiadek, Anna Zimny
INTRODUCTION: In conventional MR examinations glioblastomas multiforme (GBMs), metastases and primary CNS lymphomas (PCNSLs) may show very similar appearance. The aim of the study was to evaluate usefulness of multiparametric T2*DSC perfusion and diffusion MR imaging in the preoperative differentiation of these tumors. MATERIAL AND METHODS: Seventy four solitary enhancing tumors (27 GBMs, 30 metastases, 17 PCNSLs) were enrolled in the study. Parameters of cerebral blood volume (rCBV), peak height (rPH), percentage of signal recovery (rPSR) and apparent diffusion coefficient (ADC) were assessed from the tumor core and the peritumoral non-enhancing T2-hyperintense zone...
2018: PloS One
https://www.readbyqxmd.com/read/29336777/presence-of-apoptosis-distinguishes-primary-central-nervous-system-lymphoma-from-glioblastoma-during-intraoperative-consultation
#3
Yoon Jin Cha, Junjeong Choi, Se Hoon Kim
AIM: To evaluate the overlapping and distinguishing cytologic features of primary central nervous system lymphoma (PCNSL), diffuse large B-cell lymphoma, and glioblastoma (GM) in frozen sections and squash smear slides. MATERIALS AND METHODS: Intraoperative frozen sections and squash smear slides from PCNSL (N = 63) and GM (N = 122) patients diagnosed from 2005 to 2015 were retrieved from pathology records. Overlapping and distinguishing histologic features were examined and statistically analyzed...
January 16, 2018: Clinical Neuropathology
https://www.readbyqxmd.com/read/29333888/primary-diffuse-large-b-cell-lymphoma-of-the-ciliary-body
#4
Hayyam Kiratli, Abdullah Ağın, Berrin Büyükeren, Figen Söylemezoğlu
PURPOSE: To report an unusual case of an eye with primary ciliary body lymphoma which came to enucleation allowing detailed histopathological examination. METHODS: A 50-year-old man presented with a painful loss of vision in the left eye. The clinical, imaging, and immunohistopathological features of this case were reviewed. RESULTS: The vision in the left eye was light perception. There were keratic precipitates, an irregular and thickened iris with neovascularization...
January 15, 2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29333405/primary-central-nervous-system-lymphoma-a-new-prognostic-model-for-patients-with-diffuse-large-b-cell-histology
#5
Yongchel Ahn, Heui June Ahn, Dok Hyun Yoon, Jung Yong Hong, Changhoon Yoo, Shin Kim, Jooryung Huh, Cheolwon Suh
Background: Age and performance status are important prognostic factors in primary central nervous system (CNS) lymphoma. Although several prognostic models have been proposed, there is no consensus on the optimal model for patients with diffuse large B-cell histology. Methods: Seventy-seven patients with primary CNS diffuse large B-cell lymphoma were retrospectively analyzed to determine factors affecting survival. Three Western models were applied to our eligible patients; we devised a novel model based on our findings...
December 2017: Blood Research
https://www.readbyqxmd.com/read/29333016/clinicopathological-features-and-outcomes-in-primary-central-nervous-system-lymphoma-a-10-year-experience
#6
Chaitanya Krishna Puligundla, Stalin Bala, Ashok Kumar Karnam, Sadashivudu Gundeti, Tara Roshni Paul, Megha S Uppin, Lakshmi Srinivas Maddali
Context: Primary central nervous system lymphoma (PCNSL) is a variant of extranodal lymphoma, accounting for 4% of primary central nervous system tumors. PCNSL was more common in immunocompetent individuals. International Extranodal Lymphoma Study Group (IELSG) scoring was used for prognostication. High-dose methotrexate regimens along with radiotherapy improved outcomes in PCNSL. Aims: The aim of this study is to analyze the clinical and pathological features, progression-free survival (PFS), and overall survival (OS) in patients with PCNSL...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29331383/population-pharmacokinetics-of-high-dose-methotrexate-in-patients-with-primary-central-nervous-system-lymphoma
#7
Shenghui Mei, Xingang Li, Xueyun Jiang, Kefu Yu, Song Lin, Zhigang Zhao
The intra- and inter-individual variances of methotrexate (MTX) pharmacokinetics are extremely large, and the pharmacokinetic property of MTX in patients with primary central nervous system lymphoma (PCNSL) is unestablished. A total of 701 MTX plasma concentrations from 98 patients with PCNSL under High-dose methotrexate (HDMTX) therapy were used to develop the population pharmacokinetic (popPK) model of MTX by using the nonlinear mixed-effects modeling method. A two-compartment model was employed to describe the pharmacokinetic property of MTX...
January 10, 2018: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29330078/intraoperative-flow-cytometry-enables-the-differentiation-of-primary-central-nervous-system-lymphoma-from-glioblastoma
#8
Shunichi Koriyama, Masayuki Nitta, Takahiro Shioyama, Takashi Komori, Takashi Maruyama, Takakazu Kawamata, Yoshihiro Muragaki
OBJECTIVE: Accurate preoperative and intraoperative differentiation between primary central nervous system lymphoma (PCNSL) and glioblastoma (GBM) is sometimes difficult. Distinguishing between these tumors during surgery is important because surgical treatment is different between the two tumors. In this study, we established a new method of intraoperative differentiation between PCNSL and GBM using intraoperative flow cytometry (iFC), and we retrospectively tested whether iFC was useful for the intraoperative diagnosis of PCNSL and GBM...
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29327175/microrna-30c-as-a-novel-diagnostic-biomarker-for-primary-and-secondary-b-cell-lymphoma-of-the-cns
#9
Alexander Baraniskin, Monika Chomiak, Guido Ahle, Thomas Gress, Malte Buchholz, Michael Turewicz, Martin Eisenacher, Michelle Margold, Uwe Schlegel, Wolff Schmiegel, Stephan Hahn, Roland Schroers
Primary lymphomas of the central nervous system (PCNSL) are highly aggressive tumors affecting exclusively the CNS, meninges, and eyes. PCNSL must be separated from secondary spread of systemic lymphoma to the CNS (SCNSL), which may occur at diagnosis or relapse of systemic lymphomas. At present, there are no valid methods to distinguish PCNSL from SCNSL based on tumor biopsy because of similar histological presentation. However, SCNSL and PCNSL are different in terms of prognosis and adequate therapy protocols...
January 11, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29325248/-survival-of-patients-with-primary-central-nervous-system-diffuse-large-b-cell-lymphoma-impact-of-gene-aberrations-and-protein-overexpression-of-bcl-2-and-c-myc-and-selection-of-chemotherapy-regimens
#10
W J Yin, X Zhu, H Y Yang, W Y Sun, M J Wu
Objective: To investigate the impact of clinicopathological features, gene rearrangements and protein expression of bcl-6, bcl-2, C-MYC and chemotherapy regime on the prognosis of patients with primary central nervous system diffuse large B-cell lymphoma (PCNS-DLBCL). Methods: Thirty-three cases of PCNS-DLBCL diagnosed from January 2006 to December 2016 at Zhejiang Cancer Hospital were collected. The expression of CD10, bcl-6, bcl-2, MUM1 and MYC were detected by immunohistochemical staining (IHC). The presence of EB virus was detected by in situ hybridization(EBER)...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29323247/leakage-correction-improves-prognosis-prediction-of-dynamic-susceptibility-contrast-perfusion-mri-in-primary-central-nervous-system-lymphoma
#11
Yeon Soo Kim, Seung Hong Choi, Roh-Eul Yoo, Koung Mi Kang, Tae Jin Yun, Ji-Hoon Kim, Chul-Ho Sohn, Sung-Hye Park, Jae-Kyung Won, Tae Min Kim, Chul-Kee Park, Il Han Kim
To evaluate whether the cerebral blood volume (CBV) measurement with leakage correction from dynamic susceptibility contrast perfusion weighted imaging can be useful in predicting prognosis for primary central nervous system lymphoma (PCNSL). 46 PCNSL patients were included and classified by radiation therapy (RT) stratification into RT (n = 30) and non-RT (n = 16) groups. The corresponding histogram parameters of normalized CBV (nCBV) maps with or without leakage correction were calculated on contrast-enhanced T1 weighted image (CE T1WI) or on fluid attenuated inversion recovery image...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29299134/proteomic-changes-in-cerebrospinal-fluid-from-primary-central-nervous-system-lymphoma-patients-are-associated-with-protein-ectodomain-shedding
#12
Daniel Michael Waldera-Lupa, Omid Etemad-Parishanzadeh, Mareike Brocksieper, Nina Kirchgaessler, Sabine Seidel, Thomas Kowalski, Manuel Montesinos-Rongen, Martina Deckert, Uwe Schlegel, Kai Stühler
Primary central nervous system lymphomas (PCNSLs) are mature B-cell lymphomas confined to the central nervous system (CNS). Blood-brain barrier (BBB) dysfunction drastically alters the cerebrospinal fluid (CSF) proteome in PCNSL patients. To reveal the interaction of PCNSL tumors with CNS structures and the vasculature, we conducted a whole-proteome analysis of CSF from PCNSL patients (n = 17 at initial diagnosis) and tumor-free controls (n = 10) using label-free quantitative mass spectrometry. We identified 601 proteins in the CSF proteome using a one-step approach without further prefractionation, and quantified 438 proteins in detail using the Hi-N method...
December 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/29297171/treatment-of-hiv-associated-lymphomas-the-latest-approaches-for-optimizing-outcomes
#13
Natasha B Hunter, Samantha Vogt, Richard F Ambinder
Treatment outcomes for patients with HIV-related lymphoma have improved since the advent of combination antiretroviral therapy. Standard regimens, including intensive regimens, are being used with encouraging results in patients with diffuse large B-cell lymphoma, Burkitt lymphoma, Hodgkin lymphoma, and primary central nervous system lymphoma. Approaches to salvage therapy also parallel those used in patients without HIV infection, including autologous and allogeneic hematopoietic stem cell transplant. Drug interactions with particular antiretrovirals warrant close attention...
December 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/29296917/checkpoint-blockade-in-hodgkin-and-non-hodgkin-lymphoma
#14
REVIEW
Reid W Merryman, Philippe Armand, Kyle T Wright, Scott J Rodig
Classical Hodgkin lymphoma (cHL) is characterized by nearly universal genetic alterations in 9p24.1, resulting in constitutive expression of PD-1 ligands. This likely underlies the unique sensitivity of cHL to PD-1 blockade, with response rates of ∼70% in relapsed/refractory disease. There are now numerous clinical trials testing PD-1 inhibitors in earlier stages of treatment and in combination with many other therapies. In general, non-Hodgkin lymphomas (NHLs) do not display a high frequency of 9p24.1 alterations and do not share cHL's vulnerability to PD-1 blockade...
December 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29290994/radiotherapy-as-an-alternative-treatment-option-for-primary-central-nervous-system-lymphoma-patients-who-are-noncandidates-for-chemotherapy
#15
Yoo-Kang Kwak, Byung-Ock Choi, Kyu Hye Choi, Jong Hoon Lee, Soo Yoon Sung, Yun Hee Lee
The standard treatment for primary central nervous system (CNS) lymphoma is based on chemotherapy. However, there are patients who are not indicated for chemotherapy and when left untreated, the expected functional outcomes for these patients are devastating since the disease causes various neurologic symptoms. Therefore, we assessed the effects of radiotherapy as an alternative therapy in primary CNS lymphoma. Thirty-two patients were diagnosed with primary CNS lymphoma and treated with radiotherapy alone...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290197/primary-cns-lymphoma-vs-tumefactive-multiple-sclerosis-a-diagnostic-challenge
#16
Sameen Bin Naeem, Farheen Niazi, Atif Baig, Hina Sadiq, Mubbasher Sattar
Primary CNS (central nervous system) lymphoma is a rare condition with the incidence of less than 1% of all non-Hodgkin lymphomas (NHLs) and approximately 2% of all primary brain tumours. Diagnosis can be challenging and necessitates brain biopsy for definitive diagnosis. A 41-year male presented with history of impaired cognition, facial asymmetry, visual impairment and left sided body weakness. MRI brain demonstrated multiple enhancing lesions with one larger lesion in right basal ganglia with surrounding oedema and mass effect...
January 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29280764/primary-central-nervous-system-lymphoma-with-light-chain-deposition-disease-aggregoma
#17
Tyler D Boulter, Ama Sadaka, Mohammad Obadah Nakawah, Stacy V Smith, Nail Alouch, Shauna E Berry, Andrew T Whyte, Gregory N Fuller, Andrew G Lee
No abstract text is available yet for this article.
December 26, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29258950/myd88-mutation-in-the-elderly-predicts-a-poor-prognosis-in-primary-cns-lymphoma-multi-institutional-analysis
#18
Shingo Takano, Keiichiro Hattori, Eiichi Ishikawa, Yoshitaka Narita, Yasuo Iwadate, Fumio Yamaguchi, Motoo Nagane, Jiro Akimoto, Hidehiro Oka, Satoshi Tanaka, Mamiko Sakata, Masahide Matsuda, Tetsuya Yamamoto, Shigeru Chiba, Akira Matsumura
Recent genetic analysis of primary central nervous system lymphoma (PCNSL) showed that the MyD88 L265P mutation, which is related to NF-kB signaling, was a genetic hallmark for PCNSL; thus, it could serve as a genetic marker for diagnosis and a potential target for molecular therapy. However, the role of the MyD88 mutation in PCNSL has not been defined. In this study, we investigated the role of the MyD88 mutation and the clinical features of PCNSL-treated patients at several institutions to determine its significance as a prognostic factor...
December 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29222307/secondary-cns-relapse-in-diffuse-large-b-cell-lymphoma-defining-high-risk-patients-and-optimization-of-prophylaxis-strategies
#19
REVIEW
Kerry J Savage
Despite improvement in survival in diffuse large B-cell lymphoma (DLBCL) with the introduction of rituximab, central nervous system (CNS) relapse continues to represent a clinical challenge. A number of studies have evaluated clinical risk factors in an attempt to identify high-risk patients to direct CNS staging investigations and consider prophylaxis strategies. The CNS International Prognostic Index is a robust and reproducible risk model that can identity patients at high risk of CNS relapse, but its specificity remains limited...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222306/therapy-of-primary-cns-lymphoma-role-of-intensity-radiation-and-novel-agents
#20
REVIEW
Andrés José María Ferreri
Primary central nervous system (CNS) lymphomas represent a subgroup of malignancies with specific characteristics, an aggressive course, and unsatisfactory outcome in contrast with other lymphomas comparable for tumor burden and histological type. Despite the high sensitivity to conventional chemotherapy and radiotherapy, remissions are frequently short lasting. Treatment efficacy is limited by several factors, including the biology and microenvironment of this malignancy and the "protective" effect of the blood-brain barrier, which limits the access of most drugs to the CNS...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
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