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Primary mediastinal large B cell lymphoma

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https://www.readbyqxmd.com/read/27884092/a-retrospective-analysis-of-outcomes-for-primary-mediastinal-large-b-cell-lymphoma-treated-with-rchop-followed-by-radiotherapy-or-front-line-autologous-stem-cell-transplantation
#1
Xiaojian Liu, Ting Deng, Xianzhi Guo, Ye Guo, Leiping Wang, Jian Zhang, Zuguang Xia, Quanling Zhang, Kai Xue, Junning Cao, Jumei Shi, Xiaonan Hong
OBJECTIVES: Our aim was to retrospectively investigate the data from our institute the response rate and outcome in patients with primary mediastinal B-cell lymphoma (PMBL) who received the rituximab in combination with CHOP (RCHOP) followed by autologous stem cell transplantation (ASCT) or RCHOP followed by involved field radiation therapy (IFRT). METHODS: Sixty five patients with PMBL received RCHOP as first-line chemotherapy between January 2005 and December 2010...
November 25, 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/27879516/performance-of-a-commercially-available-mal-antibody-in-the-diagnosis-of-primary-mediastinal-large-b-cell-lymphoma
#2
Michael Gentry, Juraj Bodo, Lisa Durkin, Eric D Hsi
Myelin and lymphocyte (MAL) protein has been previously reported as a highly specific marker for distinguishing primary mediastinal large B-cell lymphoma (PMBL) from diffuse large B-cell lymphoma, not otherwise specified (DLBCL, NOS). However, there has not been a commercially available MAL antibody for immunohistochemistry. We identified a commercially available MAL monoclonal antibody and evaluated it by immunohistochemistry on 43 cases of PMBL and 63 cases of DLBCL, NOS. We also compared this with a CD200 antibody that was previously reported useful in distinguishing PMBL and DLBCL, NOS...
November 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27866679/-hodgkin-and-non-hodgkin-lymphoma-of-adolescents-and-young-adults
#3
REVIEW
Sylvain Garciaz, Diane Coso, Pauline Brice, Réda Bouabdallah
Lymphoma is one of the most frequent cancers in adolescent and young adults. Hodgkin Lymphoma is curable in more than 90% of cases. Recent pediatric and adults protocols aimed to decrease long term toxicities (mostly gonadic and cardiovascular) and secondary malignancies, reducing the use of alkylating agents and limiting radiation fields. Risk-adapted strategies, using positron emission tomography staging, are about to become a standard, both in adult and pediatric protocols. These approaches allow obtaining excellent results in adolescents with Hodgkin lymphoma...
November 17, 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27861596/pd-l1-status-in-refractory-lymphomas
#4
Semir Vranic, Nilanjan Ghosh, Jeffery Kimbrough, Nurija Bilalovic, Ryan Bender, David Arguello, Yvonne Veloso, Aida Dizdarevic, Zoran Gatalica
Targeted immunotherapy based on PD-1/PD-L1 suppression has revolutionized the treatment of various solid tumors. A remarkable improvement has also been observed in the treatment of patients with refractory/relapsing classical Hodgkin lymphoma (cHL). We investigated PD-L1 status in a variety of treatment resistant lymphomas. Tumor samples from 78 patients with therapy resistant lymphomas were immunohistochemically (IHC) investigated for the expression of PD-L1 using two antibody clones (SP142 and SP263, Ventana)...
2016: PloS One
https://www.readbyqxmd.com/read/27858330/primary-mediastinal-large-b-cell-lymphoma-in-japanese-children-and-adolescents
#5
Tomoo Osumi, Fumiko Tanaka, Tetsuya Mori, Reiji Fukano, Masahito Tsurusawa, Koichi Oshima, Atsuko Nakazawa, Ryoji Kobayashi
This is the first case series to describe primary mediastinal large B-cell lymphoma (PMLBL) patients in children and adolescents in Asia. We retrospectively identified 17 PMLBL patients diagnosed between 1991 and 2014; in seven of these cases, the diagnosis was confirmed by central review, representing 1.0% of all NHL and 2.2% of all B-NHL cases registered. All patients were teenagers, including seven adolescents, with a median age of 14 years (range 12-18 years). Ten patients were male, and seven were female...
November 17, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27806315/primary-mediastinal-large-b-cell-lymphoma-transcriptional-regulation-by-mir-92a-through-foxp1-targeting
#6
Martha Romero, Guillaume Gapihan, Luis Jaime Castro-Vega, Andrés Acevedo, Li Wang, Zhao Wei Li, Morad El Bouchtaoui, Mélanie Di Benedetto, Philippe Ratajczak, Jean-Paul Feugeas, Catherine Thieblemont, Carlos Saavedra, Anne Janin
BACKGROUND: Primary mediastinal large B-cell lymphoma (PMBL) shares pathological features with diffuse large B-cell lymphoma (DLBCL), and molecular features with classical Hodgkin lymphoma (cHL). The miR-17~92 oncogenic cluster, located at chromosome 13q31, is a region that is amplified in DLBCL. METHODS: Here we compared the expression of each member of the miR-17~92 oncogenic cluster in samples from 40 PMBL patients versus 20 DLBCL and 20 cHL patients, and studied the target genes linked to deregulated miRNA in PMBL...
October 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/27803409/primary-mediastinal-large-b-cell-lymphoma-exhibiting-endobronchial-involvement
#7
Midori Shimada, Minoru Fukuda, Kensuke Horio, Takayuki Suyama, Takeshi Kitazaki, Kohji Hashiguchi, Masaaki Fukuda, Kazuto Shigematsu, Yoichi Nakamura, Takuya Honda, Kazuto Ashizawa, Hiroshi Mukae
Primary mediastinal large B-cell lymphoma (PMLBCL) is one of the subtypes of diffuse large B-cell lymphoma. We experienced a rare case of PMLBCL that exhibited endobronchial involvement. A 33-year-old Japanese female with the chief complaints of epigastralgia, back pain, and nausea visited a primary care hospital. Computed tomography of the chest and abdomen demonstrated a bulky mass in the left anterior mediastinum, multiple pulmonary nodules, axillary lymph node swelling, and a pancreatic tumor. Fiberoptic bronchoscopy showed a white-tinged irregularly shaped endobronchial tumor accompanied by capillary vessel dilation in the left upper lobar bronchus...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27795778/-primary-mediastinal-large-b-cell-lymphoma-in-women-about-five-cases
#8
Safaa Ouassou, Laila Herrak, Leila Achachi, Fatima Nachite, Kaoutar Znati, Mustapha El Ftouh
Primary mediastinal large B-cell lymphoma (PMBL) is a lymphoma occurring in the anterior mediastinum starting from the cells B of the thymique medullary zone. This is a rare entity characterized by epidemiological, clinical and evolutionary peculiarities as well as by pathological and immunohistochemical peculiarities. We report a case series of 5 patients with diagnosed PMBL hospitalized in Pulmonology Department of Ibn Sina Hospital between January 2012 and May 2016. The average age was 34 years, the median of consultation time was 2 months...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27758822/mediastinal-grey-zone-lymphoma-clinico-pathological-characteristics-and-outcomes-of-99-patients-from-the-lysa
#9
Clémentine Sarkozy, Thierry Molina, Hervé Ghesquières, Anne-Sophie Michallet, Jehan Dupuis, Diane Damotte, Franck Morsschauser, Marie Parrens, Laurent Martin, Peggy Dartigues, Aspasia Stamatoullas, Pierre Hirsch, Betina Fabiani, Krimo Bouabdallah, Maria Gomes da Silva, Marie Maerevoet, Camille Laurent, Bertrand Coiffier, Gilles Salles, Alexandra Traverse-Glehen
Mediastinal grey zone lymphoma, B cell lymphomas with intermediate features between classical Hodgkin lymphoma and primary mediastinal B cell lymphoma, are not well described in the literature. We report the clinical characteristics and outcomes of a large retrospective series of 99 cases centrally reviewed by a panel of hematopathologists, with a consensus established for the diagnosis. Cases were defined as classical Hodgkin lymphoma-like morphology (64.6%) with primary mediastinal B cell lymphoma immunophenotype, primary mediastinal B cell lymphoma-like morphology (30...
October 6, 2016: Haematologica
https://www.readbyqxmd.com/read/27725597/clinical-manifestation-and-treatment-of-extranodal-diffuse-large-b-cell-lymphoma
#10
Naoto Tomita
Diffuse large B-cell lymphoma (DLBCL) accounts for 30-40% of all lymphoma subtypes. More than half of DLBCLs are estimated to arise from extranodal sites, and are called extranodal DLBCLs. Generally, the outcomes of extranodal DLBCL are not different from those of nodal DLBCL. To our knowledge, this report is the first to discuss the concept and the cell of origin of extranodal DLBCL, with the significance of the presence/absence of each involvement site in determining the outcome. Second, the evidence of clinical manifestation and outcomes of several extranodal DLBCLs requiring treatments other than R-CHOP, which is the current standard therapy for this malignancy, are discussed...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27679780/cd4-positive-diffuse-large-b-cell-lymphoma-a-variant-with-aggressive-clinical-potential
#11
REVIEW
Mohammad O Hussaini, Friederike H Kreisel, Anjum Hassan, TuDung T Nguyen, John L Frater
CD4 expression is rare in diffuse large B-cell lymphoma (DLBCL), with 4 previously reported cases. Its significance is uncertain. We report five patients with CD4(+) DLBCL and one CD4(+) primary mediastinal large B-cell lymphoma. Cases were identified by searching the electronic database of the department; each was reviewed. Average age was 56 years. Neoplastic cells expressed CD20 (5/6 tested cases). BCL2/BCL6 expression were seen in 3/3 tested cases, suggesting a germinal center origin. Additionally, expression of T-cell antigens CD2 and CD5 was noted in 2/2 and CD7 in 1/1 tested case...
September 26, 2016: World Journal of Methodology
https://www.readbyqxmd.com/read/27670424/frequent-nfkbie-deletions-are-associated-with-poor-outcome-in-primary-mediastinal-b-cell-lymphoma
#12
Larry Mansouri, Daniel Noerenberg, Emma Young, Elena Mylonas, Maysaa Abdulla, Mareike Frick, Fazila Asmar, Viktor Ljungström, Markus Schneider, Kenichi Yoshida, Aron Skaftason, Tatjana Pandzic, Blanca Gonzalez, Anna Tasidou, Nils Waldhueter, Alfredo Rivas-Delgado, Maria Angelopoulou, Marita Ziepert, Christopher Maximilian Arends, Lucile Couronné, Dido Lenze, Claudia D Baldus, Christian Bastard, Jessica Okosun, Jude Fitzgibbon, Bernd Dörken, Hans G Drexler, Damien Roos-Weil, Clemens A Schmitt, Helga Duverger Munch-Petersen, Thorsten Zenz, Martin-Leo Hansmann, Jonathan C Strefford, Gunilla Enblad, Olivier A Bernard, Elisabeth Ralfkiaer, Martin Erlanson, Penelope Korkolopoulou, Magnus Hultdin, Theodora Papadaki, Kirsten Grønbæk, Armando Lopez-Guillermo, Seishi Ogawa, Ralf Küppers, Kostas Stamatopoulos, Niki Stavroyianni, George Kanellis, Andreas Rosenwald, Elias Campo, Rose-Marie Amini, German Ott, Theodoros P Vassilakopoulos, Michael Hummel, Richard Rosenquist, Frederik Damm
We recently reported a truncating deletion in the NFKBIE gene, which encodes IκBϵ, a negative feedback regulator of NF-κB, in clinically aggressive chronic lymphocytic leukemia (CLL). Preliminary data indicate enrichment of NFKBIE aberrations in other lymphoid malignancies, hence we screened a large patient cohort (n=1460) diagnosed with different lymphoid neoplasms. While NFKBIE deletions were infrequent in follicular lymphoma, splenic marginal-zone lymphoma, and T-cell acute lymphoblastic leukemia (<2%), slightly higher frequencies were seen in diffuse large B-cell lymphoma, mantle cell lymphoma, and primary CNS lymphoma (3-4%)...
September 26, 2016: Blood
https://www.readbyqxmd.com/read/27595360/lymphoma-in-adolescents-and-young-adults
#13
Laurence Brugières, Pauline Brice
Lymphomas are one of the commonest malignancies in adolescents and young adults (AYA) accounting respectively for 22% of all cancers in patients aged 15-24 years (16% for Hodgkin lymphoma (HL) and 6% for non-HL (NHL)). The distribution of NHL subtypes in this age group differs strikingly from the distribution in children and in older adults with 4 main subtypes accounting for the majority of the cases: diffuse large B-cell lymphoma (DLBCL) including primary mediastinal B-cell lymphoma, Burkitt lymphoma, lymphoblastic lymphoma or anaplastic large cell lymphoma...
2016: Progress in Tumor Research
https://www.readbyqxmd.com/read/27568673/primary-mediastinal-large-b-cell-lymphoma-and-its-mimickers-a-rare-case-report-with-literature-review
#14
T T Win, Z Kamaludin, A Husin
Primary mediastinal large B-cell lymphoma (PMLBL) is an uncommon non-Hodgkin lymphoma with a distinct clinicopathological entity in the WHO classification of lymphoid malignancies. It is known to originate from B-cells of the thymus. It mimics thymic neoplasms and other lymphomas clinically and histopathologically. We reported a 33-year-old obese man who presented with shortness of breath off and on for 4 years. Radiologically, there was a huge anterior mediastinal mass. Tru-cut biopsy was initially diagnosed as type-A thymoma...
August 2016: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/27545416/training-improves-the-interobserver-agreement-of-the-expert-positron-emission-tomography-review-panel-in-primary-mediastinal-b-cell-lymphoma-interim-analysis-in-the-ongoing-international-extranodal-lymphoma-study-group-37-study
#15
Luca Ceriani, Sally Barrington, Alberto Biggi, Bogdan Malkowski, Ur Metser, Annibale Versari, Maurizio Martelli, Andrew Davies, Peter W Johnson, Emanuele Zucca, Stéphane Chauvie
The International Extranodal Lymphoma Study Group (IELSG)-37 is a prospective randomized trial assessing the role of consolidation mediastinal radiotherapy after immunochemotherapy to patients with newly diagnosed primary mediastinal large B-cell lymphoma (PMBCL). It is a positron emission tomography (PET) response-guided study where patients obtaining a complete metabolic response on an end-of-therapy PET-computed tomography (CT) scan evaluated by a central review are randomized to receive radiotherapy or no further treatment...
August 22, 2016: Hematological Oncology
https://www.readbyqxmd.com/read/27521276/clinical-implications-of-cd30-expression-in-aggressive-b-cell-lymphomas
#16
Jozef Malysz, Patrick Erdman, Jeremy Klapper, Junjia Zhu, Michael Creer, Michael G Bayerl
BACKGROUND: US Food and Drug Administration approval of brentuximab vedotin for treatment of CD30-positive relapsed/refractory lymphomas, including classical Hodgkin lymphoma and anaplastic large cell lymphoma, initiated significant interest in researching CD30 expression in other therapy-resistant or relapsed lymphomas. We evaluated CD30 expression in 116 cases of aggressive B-cell lymphomas diagnosed at Penn State Milton S. Hershey Medical Center between 2000 and 2012 with the purpose of assessing the benefit of treatment with brentuximab...
August 2016: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/27507160/-mediastinal-lymphomas
#17
S Rauthe, A Rosenwald
Lymphomas infiltrating the mediastinum are a challenge for the treating physician as well as for the pathological diagnostics. The clinical scenario is often an emergency situation, while the pathologist is usually confronted only with small biopsy samples. Classical Hodgkin's lymphoma is by far the most frequently occurring lymphoma in the mediastinum and predominantly the nodular sclerosis subtype. In small and very sclerotic specimens it can be difficult to morphologically detect Hodgkin and Reed-Sternberg cells and to identify the characteristic phenotype by immunohistochemistry...
September 2016: Der Pathologe
https://www.readbyqxmd.com/read/27459613/-therapy-for-primary-mediastinal-large-b-cell-lymphoma-in-accordance-with-the-r-da-epoch-21-program-the-first-results
#18
Ya K Mangasarova, A U Magomedova, E S Nesterova, E M Volodicheva, V I Vorob'ev, S K Kravchenko
AIM: to evaluate the efficiency of the R-DA-EPOCH-21 + R-DHAP protocol and autologous hematopoietic stem cell transplantation (a BEAM conditioning mode) in first-line therapy for primary mediastinal large B-cell lymphoma (PMBCL). SUBJECTS AND METHODS: In 2013 to 2016, the investigation enrolled 57 patients with newly diagnosed PMBCL (according to the 2008 WHO criteria). The results were analyzed in 40 patients who had completed their treatment. RESULTS: All the 40 patients (14 men and 26 women) (median age, 27 years (19 to 67 years)) received 6 cycles of polychemotherapy (PCT) in accordance with the R-DA-EPOCH-21 regimen...
2016: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/27441757/primary-mediastinal-classical-hodgkin-lymphoma
#19
Sergio Piña-Oviedo, Cesar A Moran
Primary mediastinal Classical Hodgkin lymphoma (CHL) is rare. Nodular sclerosis CHL (NS-CHL) is the most common subtype involving the anterior mediastinum and/or mediastinal lymph nodes. Primary thymic CHL is exceedingly rare. The disease typically affects young women and is asymptomatic in 30% to 50% of patients. Common symptoms include fatigue, chest pain, dyspnea and cough, but vary depending on the location and size of the tumor. B-symptoms develop in 30% of cases. By imaging, primary mediastinal CHL presents as mediastinal widening/mediastinal mass that does not invade adjacent organs but may compress vital structures as bulky disease...
September 2016: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/27419920/the-immunophenotypic-spectrum-of-primary-mediastinal-large-b-cell-lymphoma-reveals-prognostic-biomarkers-associated-with-outcome
#20
Jacob R Bledsoe, Robert A Redd, Robert P Hasserjian, Jacob D Soumerai, Ha T Nishino, Daniel F Boyer, Judith A Ferry, Lawrence R Zukerberg, Nancy Lee Harris, Jeremy S Abramson, Aliyah R Sohani
Primary mediastinal large B-cell lymphoma (PMBL) is a distinct subtype of diffuse large B-cell lymphoma (DLBCL) that shows overlap with classical Hodgkin lymphoma (CHL) and a favorable prognosis compared to mediastinal gray-zone lymphoma (MGZL). We performed immunohistochemistry on initial diagnostic specimens of 49 cases of uniformly treated PMBL to determine the frequency and clinical significance of expression of antigens commonly seen in CHL and MGZL, along with markers previously shown to be prognostic in DLBCL, not otherwise specified...
October 2016: American Journal of Hematology
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