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Primary mediastinal lymphoma

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https://www.readbyqxmd.com/read/28722111/monoamine-oxidase-a-is-highly-expressed-in-classical-hodgkin-lymphoma
#1
Pei Chuan Li, Imran N Siddiqi, Anja Mottok, Eric Y Loo, Chieh Hsi Wu, Wendy Cozen, Christian Steidl, Jean Chen Shih
Monoamine oxidase A (MAOA) is a mitochondrial enzyme that catalyzes oxidative deamination of neurotransmitters and dietary amines and produces H2 O2. It facilitates the progression of gliomas and prostate cancer, but its expression and functional relevance have not been studied in lymphoma. Here, we evaluated MAOA in 427 cases of Hodgkin and non-Hodgkin lymphoma and in a spectrum of reactive lymphoid tissues by immunohistochemistry on formalin-fixed paraffin-embedded specimens. MAOA was expressed by Hodgkin Reed-Sternberg (HRS) cells in the majority of classical Hodgkin lymphomas (cHL) (181/241; 75%), with 34...
July 19, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28714265/can-malignant-and-inflammatory-pleural-effusions-in-dogs-be-distinguished-using-computed-tomography
#2
Thom C Watton, Ana Lara-Garcia, Christopher R Lamb
Computed tomography (CT) is the primary imaging modality used to investigate human patients with suspected malignant or inflammatory pleural effusion, but there is a lack of information about the clinical use of this test in dogs. To identify CT signs that could be used to distinguish pleural malignant neoplasia from pleuritis, a retrospective case-control study was done based on dogs that had pleural effusion, pre- and postcontrast thoracic CT images, and cytological or histopathological diagnosis of malignant or inflammatory pleural effusion...
July 16, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28684378/utility-of-bone-marrow-biopsy-and-aspirate-for-staging-of-diffuse-large-b-cell-lymphoma-in-the-era-of-positron-emission-tomography-with-2-deoxy-2-fluorine-18-fluoro-deoxyglucose-integrated-with-computed-tomography
#3
Prakash Vishnu, Andrew Wingerson, Marie Lee, Margaret T Mandelson, David M Aboulafia
BACKGROUND: About one-third of patients with diffuse large B cell lymphoma (DLBCL) have lymphomatous bone marrow involvement (BMI) at the time of diagnosis, and bone marrow aspirate/biopsy (BMAB) is considered the gold standard to detect such involvement. [(18)F] fluorodeoxyglucose positron emission tomography combined with computed tomography (PET-CT), has become standard pretreatment imaging in DLBCL and may be a noninvasive alternative to BMAB to ascertain BMI. Prior studies have suggested that PET-CT scan may obviate the need for BMAB as a component for staging patients with newly diagnosed DLBCL, but this is not yet a standard of practice...
June 17, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28660709/patient-characteristics-prognostic-factors-and-outcome-of-dogs-with-high-grade-primary-mediastinal-lymphoma
#4
E L Moore, W Vernau, R B Rebhun, K A Skorupski, J H Burton
The goals of this retrospective study were to determine the patient characteristics of dogs with high-grade primary mediastinal lymphoma and to determine outcome and associated prognostic factors. A total of 42 dogs were identified, in which 36 received treatment and had follow-up information available. The most common clinical signs included lethargy, anorexia and polyuria/polydipsia. Hypercalcemia and pleural effusion were common findings at diagnosis. The phenotype was almost exclusively T-cell, most often in association with lymphoblastic cytomorphology as defined by the World Health Organization (WHO) lymphoma classification scheme...
June 28, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28659618/an-oncogenic-axis-of-stat-mediated-batf3-upregulation-causing-myc-activity-in-classical-hodgkin-lymphoma-and-anaplastic-large-cell-lymphoma
#5
A Lollies, S Hartmann, M Schneider, T Bracht, A Weiß, J Arnolds, L Klein-Hitpass, B Sitek, M-L Hansmann, R Küppers, M A Weniger
Classical Hodgkin lymphoma (cHL) and anaplastic large cell lymphoma (ALCL) feature high expression of AP-1 transcription factors, which regulate various physiological processes but also promote lymphomagenesis. The AP-1 factor basic leucine zipper transcription factor, ATF-like 3 (BATF3) is highly transcribed in cHL and ALCL; however, its functional importance in lymphomagenesis is unknown. Here we show that proto-typical CD30(+) lymphomas, namely cHL (21/30) and primary mediastinal B-cell lymphoma (8/9), but also CD30(+) diffuse large B-cell lymphoma (15/20) frequently express BATF3 protein...
June 29, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28658648/prevention-of-human-lymphoproliferative-tumor-formation-in-ovarian-cancer-patient-derived-xenografts
#6
Kristina A Butler, Xiaonan Hou, Marc A Becker, Valentina Zanfagnin, Sergio Enderica-Gonzalez, Daniel Visscher, Kimberly R Kalli, Piyawan Tienchaianada, Paul Haluska, S John Weroha
Interest in preclinical drug development for ovarian cancer has stimulated development of patient-derived xenograft (PDX) or tumorgraft models. However, the unintended formation of human lymphoma in severe combined immunodeficiency (SCID) mice from Epstein-Barr virus (EBV)-infected human lymphocytes can be problematic. In this study, we have characterized ovarian cancer PDXs which developed human lymphomas and explore methods to suppress lymphoproliferative growth. Fresh human ovarian tumors from 568 patients were transplanted intraperitoneally in SCID mice...
June 25, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28653407/clinical-heterogeneity-of-diffuse-large-b-cell-lymphoma-following-failure-of-front-line-immunochemotherapy
#7
Umar Farooq, Matthew J Maurer, Carrie A Thompson, Gita Thanarajasingam, David J Inwards, Ivana Micallef, William Macon, Sergei Syrbu, Tasha Lin, Yi Lin, Stephen M Ansell, Grzegorz S Nowakowski, Thomas M Habermann, James R Cerhan, Brian K Link
This study aimed to describe the patterns of care and outcomes of diffuse large B cell lymphoma (DLBCL) after failure of front line anthracycline-based immunochemotherapy (IC). Patients with newly diagnosed lymphoma were prospectively enrolled in Molecular Epidemiology Resource (MER) of the University of Iowa/Mayo Clinic Lymphoma Specialized Program of Research Excellzence. All DLBCL and primary mediastinal B-cell lymphoma (PMBL) patients treated with front-line anthracycline-based IC were followed for relapse...
June 27, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28634685/poor-predictive-value-of-positive-interim-fdg-pet-ct-in-primary-mediastinal-large-b-cell-lymphoma
#8
Julien Lazarovici, Marie Terroir, Julia Arfi-Rouche, Jean-Marie Michot, Sacha Mussot, Valentina Florea, Maria-Rosa Ghigna, Peggy Dartigues, Cynthia Petrovanu, Alina Danu, Christophe Fermé, Vincent Ribrag, David Ghez
PURPOSE: Though commonly used to assess response to therapy, the prognostic value of interim FDG-PET/CT in Primary Mediastinal Large B-cell Lymphoma (PMBCL) is unclear. METHODS: We conducted a retrospective study on 36 consecutive patients treated at our institution for a PMBCL between 2006 and 2014. All patients with a positive interim FDG-PET/CT had undergone histological restaging consisting either in a surgical debulking of the residual lesion (15 patients) or a CT-guided core needle biopsy (two patients)...
June 21, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28620906/management-of-primary-mediastinal-b-cell-lymphoma-and-gray-zone-lymphoma
#9
Kieron Dunleavy
Primary mediastinal B-cell lymphoma is a distinct clinicopathologic entity that has a predilection for young women. It is clinically and molecularly different from other subtypes of diffuse large B-cell lymphoma and has a unique paradigm of management. While the cure rate for patients with primary mediastinal B-cell lymphoma is high, approaches have historically included mediastinal radiation; in moving therapeutics forward, strategies that obviate the need for radiation while maintaining high cure rates are critical...
June 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28545570/the-feasibility-of-contrast-enhanced-ultrasonography-ceus-in-the-diagnosis-of-non-cardiac-thoracic-disorders-of-dogs-and-cats
#10
N Linta, M Baron Toaldo, G Bettini, A Cordella, M Quinci, P Pey, V Galli, M Cipone, A Diana
BACKGROUND: This study describes the feasibility of Contrast Enhanced Ultrasonography (CEUS) in the diagnostic work-up of non-cardiac thoracic disorders of small animals. The second aim is to assess the usefulness of CEUS as a direct guide for sample procedures. RESULTS: Forty animals, 28 dogs and 12 cats, were included in the study. Thoracic disorders included 23 pulmonary lesions [primary carcinoma (14), lymphoma (1), sarcoma (1), histiocytic sarcoma (1), abscess (1) and pneumonia (5)] and 17 mediastinal lesions [lymphoma (8), thymoma (3), mesothelioma (1), melanoma (1), carcinomatous lymphadenopathy (1), mixsosarcoma (1), lipoma (1), and abscess (1)]...
May 25, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28539298/-fine-needle-aspiration-cell-pathology-for-diagnosis-of-intrathoracic-extramedullary-hematopoiesis-presenting-as-a-posterior-mediastinal-tumor-a-case-report
#11
Jie Zhou, Tong Zhao, Min Deng
To study the feasibility of in a A patient with extramedullary hematopoiesis presenting as a posterior mediastinal tumor underwent fine-needle aspiration for cell pathology diagnosis. The primary locus of a posterior mediastinal extramedullary hematopoiesis was examined with Papanicolaou staining and HE staining, and the expressions of cytokeratin, epithelial membrane antigen (EMA), terminal deoxynucleotidyl transferase, CD3, CD20, anaplastic lymphoma kinase, CD34, CD235a, myeloperoxidase, CD61, P53, CD30, S-100, CD1a, and Ki-67 with immunohistochemistry...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28532396/addition-of-rituximab-to-chop-like-chemotherapy-in-first-line-treatment-of-primary-mediastinal-b-cell-lymphoma
#12
K Lisenko, G Dingeldein, M Cremer, M Kriegsmann, A D Ho, M Rieger, M Witzens-Harig
BACKGROUND: The addition of rituximab (R) to CHOP (cyclophosphamide, doxorubicin, vincristine and prednisone) -like therapy has improved survival in primary mediastinal B-cell lymphoma (PMBCL) patients. However, these results were obtained in young low risk patients and a reevaluation in an unselected patient cohort is warranted. METHODS: In this study, we analyzed 80 PMBCL patients treated with a CHOP-based regimen with and without rituximab. RESULTS: In the non-rituximab cohort 10-year progression free survival (PFS) was 67% and 10-year overall survival (OS) was 72% versus a PFS of 95% and a OS of 92% in the rituximab group, PFS P = 0...
May 22, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28523302/the-use-of-ebus-tbna-and-rose-in-the-diagnosis-of-lung-cancer
#13
Mărioara Şimon, Bogdan Pop, Iuliana Lăcrămioara Toma, Aletta Kinga Vallasek, Ioan Şimon
Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a minimally invasive method for diagnosing and staging of lung cancer. EBUS-TBNA obtained small specimens. Rapid on-site examination (ROSE) is a rapid, real-time examination method. The aim of our study is to evaluate the impact of ROSE on adequate specimen sampling, rapid results and high diagnostic rate. We present the experience of the Department of Bronchology, "Leon Daniello" Clinic of Pulmonology, Cluj-Napoca, Romania, with EBUS-TBNA as a tool for diagnostic of adenopathies of unknown etiology...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28490569/safety-tolerability-of-pembrolizumab-in-patients-with-relapsed-refractory-primary-mediastinal-large-b-cell-lymphoma
#14
Pier Luigi Zinzani, Vincent Ribrag, Craig H Moskowitz, Jean-Marie Michot, John Kuruvilla, Arun Balakumaran, Yayan Zhang, Sabine Chlosta, Margaret A Shipp, Philippe Armand
Treatment options for relapsed/refractory primary mediastinal large B-cell lymphoma (rrPMBCL) are limited and prognosis is generally poor (overall response rate [ORR] 0-25%; 2-year overall survival 15%). PMBCL frequently involves PD-1 ligand overexpression, potentially making PMBCL particularly susceptible to PD-1 blockade. We evaluated safety and antitumor activity of pembrolizumab, an anti-PD-1 antibody, in rrPMBCL as part of the KEYNOTE-013 multicohort Phase 1b trial. At time of data cutoff, 18 patients (median age 30; median 3 prior lines of therapy) had been enrolled and treated, of whom 17 were included in the efficacy analyses...
May 10, 2017: Blood
https://www.readbyqxmd.com/read/28485042/prognostic-models-for-primary-mediastinal-thymic-b-cell-lymphoma-derived-from-18-fdg-pet-ct-quantitative-parameters-in-the-international-extranodal-lymphoma-study-group-ielsg-26-study
#15
Luca Ceriani, Maurizio Martelli, Annarita Conconi, Pier L Zinzani, Andrés J M Ferreri, Barbara Botto, Caterina Stelitano, Manuel Gotti, Maria G Cabras, Luigi Rigacci, Luca Giovanella, Emanuele Zucca, Peter W M Johnson
The International Extranodal Lymphoma Study Group-26 study evaluated the prognostic role of 18-fluorodeoxyglucose positron-emission tomography (PET) in primary mediastinal large B-cell lymphoma. We assessed quantitative PET parameters at diagnosis and post-treatment in 100 patients. The end-of-therapy total lesion glycolysis (TLG) was the best individual outcome predictor, but the combination of baseline TLG and end-of-therapy visual analysis with Deauville Score (DS) showed a better positive predictive value...
May 9, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28415982/the-treatment-of-primary-mediastinal-large-b-cell-lymphoma-a-two-decades-monocentric-experience-with-98-patients
#16
Alessandro Broccoli, Beatrice Casadei, Vittorio Stefoni, Cinzia Pellegrini, Federica Quirini, Lorenzo Tonialini, Alice Morigi, Miriam Marangon, Lisa Argnani, Pier Luigi Zinzani
BACKGROUND: The purpose of this study is to investigate the most suitable first-line approach and the best combination treatment for primary mediastinal large B-cell lymphoma (PMLBCL) as they have been matter of debate for at least two decades. METHODS: Our single centre experience in the treatment of 98 de novo PMLBCL patients over the last 20 years is reviewed. All patients received MACOP-B chemotherapy. Thirty-seven received both rituximab and mediastinal radiotherapy; 30 were irradiated after chemotherapy, although not receiving rituximab and 20 received rituximab without radiotherapy consolidation...
April 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28407803/orchitis-reveals-an-extragonadal-primary-mediastinal-thymic-seminoma-a-coincidence-or-not
#17
Athanasios Tampakis, Ekaterini Christina Tampaki, Christos Damaskos, Themistoklis Feretis, Irene Thymara, Konstantinos Kontzoglou, Periklis Tomos, Gregory Kouraklis
BACKGROUND: Mediastinal thymic seminomas are rare male germ cell tumors with extragonadal origin that appear predominately with a cystic appearance. CASE PRESENTATION: A 22-year-old male was referred to our department for further investigation of a mediastinal mass discovered incidentally during routine chest X-ray. The patient has denied any symptoms including dyspnea, chest pain, cough, fever, dysphagia, hemoptysis, weight loss, and weakness. His past medical history was remarkable for orchitis, for which he had undergone a bilateral testicular biopsy, without the latter however, indicating the presence of a germ cell tumor or a premalignant lesion...
April 13, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28373787/multimodality-imaging-evaluation-of-a-primary-cardiac-lymphoma
#18
Paolo Ciancarella, Armando Fusco, Daniele Citraro, Massimiliano Sperandio, Roberto Floris
Primary cardiac lymphoma is a rare form of non-Hodgkin lymphoma that involves the heart with extension to pericardium and great vessels. Prognosis is poor in the absence of a prompt diagnosis and adequate therapy. Differential diagnosis includes malignant neoplasms such as angiosarcoma or metastatic carcinoma and melanoma. Clinical manifestations may be heterogeneous. Multimodality imaging work-up represents the best method for tumor detection and evaluation of its size and extension: echocardiography, computed tomography, magnetic resonance imaging, and nuclear imaging are the best imaging tools...
April 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28356993/primary-breast-lymphoma-a-single-center-study
#19
Na Zhang, Caineng Cao, Yuan Zhu, Peng Liu, Luying Liu, Ke Lu, Jialin Luo, Ning Zhou
The aim of the present study was to summarize the clinical characteristics of primary breast lymphoma (PBL) and evaluate its management approaches. A total of 29 patients newly diagnosed with PBL, and treated between April 2006 and May 2013, were analyzed retrospectively. The median survival follow-up time for all patients was 66.8 (range, 25.4-110.0) months. The results of the follow-up revealed 22 living lymphoma-free patients and 7 patients who had succumbed to PBL. Of the 7 deceased patients, 6 had succumbed to lymphoma and 1 to chemotherapy-associated hepatic failure...
February 2017: Oncology Letters
https://www.readbyqxmd.com/read/28318892/primary-mediastinal-large-b-cell-lymphoma
#20
REVIEW
Maurizio Martelli, Andrés Ferreri, Alice Di Rocco, Michela Ansuinelli, Peter W M Johnson
Primary mediastinal large B-cell lymphoma (PMLBCL) is a distinct clinical and biological disease from other types of DLBCL. It is more frequent in young female and constitutes 6%-10% of all DLBCL. PMLBCL is characterized by a diffuse proliferation of medium to large B-cells associated with sclerosis. Molecular analysis shows it to be a distinct entity from other DLBCL. Rituximab CHOP/MACOP-B-like regimens followed by mediastinal radiotherapy (RT) were associated with a 5-years PFS of 75%-85%. More intensive regimens, as DA-EPOCH-R without mediastinal RT, have shown very promising results, but this therapeutic advance needs to be confirmed in further prospective trials...
May 2017: Critical Reviews in Oncology/hematology
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