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Splenic B-cell lymphoma

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https://www.readbyqxmd.com/read/28105889/splenic-marginal-zone-lymphoma-excellent-outcomes-in-64-patients-treated-in-the-rituximab-era
#1
Adam G Starr, Paolo F Caimi, PingFu Fu, Mira R Massoud, Howard Meyerson, Eric D Hsi, David B Mansur, Sheen Cherian, Brenda W Cooper, Marcos J G De Lima, Hillard M Lazarus, Stanton L Gerson, Deepa Jagadeesh, Mitchell R Smith, Robert M Dean, Brad L Pohlman, Brian T Hill, Basem M William
OBJECTIVES AND METHODS: Splenic marginal zone lymphoma (SMZL) is a rare non-Hodgkin lymphoma. We sought to identify prognostic factors and define outcomes in a cohort of 64 patients with SMZL who were treated at two large academic medical centers in North America in the rituximab era. RESULTS: Over a median follow-up of 37.8 (range 6-167.1) months, Kaplan-Meier estimate of median OS was 156.3 months and median PFS was 52.9 months. On univariate analysis, baseline hemoglobin <12 g/dl was associated with inferior OS (p = 0...
January 20, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28087391/clonal-cytogenetic-abnormalities-are-predictor-in-developing-non-hodgkin-lymphomas
#2
Ying Wang, Yi Xiao, Xiangyu Meng, Heng Zhang, Qinlu Li, Fankai Meng, Lifang Huang, Chunrui Li, Jianfeng Zhou
Pathological analysis is the cornerstone for diagnosing malignant lymphoma. Status of cytogenetic abnormalities is frequently left unexamined if no evidence of malignancy is found in pathological analysis. In this study, we presented 3 cases in which clonal cytogenetic abnormalities were detected but morphological alterations of the same tissue did not support malignant non Hodgkin lymphoma at the first lymph node biopsy. Case 1 is a 55-year-old female with lymphadenopathy neoplastic process confirmed by flow cytometry and polymerase chain reaction (PCR)...
January 10, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28077481/splenomegaly-in-the-returning-traveller-a-diagnostic-workup
#3
Priya Umesh Patel, Padmini Sastry, Muhammad Jawad
Isolated splenomegaly is an unusual condition encompassing a broad range of diagnoses. We report a case of a 38-year-old Asian man who presented with insidious abdominal discomfort and night sweats following recent travel to India. Massive splenomegaly was the only prominent feature on clinical examination and on subsequent imaging. Extensive investigations were performed, ultimately resulting in transfer to a tertiary centre for definitive diagnosis via a splenic biopsy. A fine-needle aspiration was performed, and revealed diffuse large B-cell lymphoma (DLBCL)...
January 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28069605/splenic-diffuse-red-pulp-small-b-cell-lymphoma-displays-increased-expression-of-cyclin-d3-and-recurrent-ccnd3-mutations
#4
Soraya Curiel-Olmo, Rufino Mondejar, Carmen Almaraz, Manuela Mollejo, Laura Cereceda, Roso Marès, Sophia Derdak, Yolanda Campos-Martin, Ana Batlle, Sonia Gonzalez de Villambrosía, Marta Gut, Julie Blanc, Alexandra Traverse-Glehen, Aurelie Verney, Lucile Baseggio, Francisca I Camacho, Andrew Wotherspoon, Kostas Stamatopoulos, Aliki Xochelli, Theodora Papadaki, George Kanellis, Maurilio Ponzoni, Monica Garcia-Cosio, Jose P Vaque, Sergi Beltran, Ivo Gut, Miguel Angel Piris, Nerea Martinez
No abstract text is available yet for this article.
January 9, 2017: Blood
https://www.readbyqxmd.com/read/28018857/murine-models-of-splenic-marginal-zone-lymphoma-a-role-for-cav1
#5
REVIEW
Chelsey L Patten, Christine E Cutucache
Dozens of murine models of indolent and aggressive B-cell lymphomas have been generated to date. These include those manifesting chronic lymphocytic leukemia (CLL), diffuse large B-cell lymphoma (DLBCL), as well as xenografts of mantle cell lymphoma (MCL). These models have led to an improved understanding of disease etiology, B-cell biology, immunomodulation, and the importance of the tumor microenvironment. Despite these efforts in CLL, DLBCL, and MCL, considerably little progress toward a model of splenic marginal zone lymphoma (SMZL) has been accomplished...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27882275/a-case-of-an-enigmatic-pulmonary-infiltrate
#6
Uroosa Ibrahim, Amina Saqib, Michel Chalhoub, Jean Paul Atallah
The differential diagnosis of a pulmonary mass in an immunosuppressed host with a history of cancer is broad and includes malignant, infectious and inflammatory etiologies. Mycobacterium avium complex (MAC) is a rare cause of opportunistic infection in susceptible individuals that can present as either localized or disseminated disease. On radiologic studies, the pulmonary disease can manifest as heterogeneous linear or nodular densities, a mass-like lesion, or thin-walled cavitary lesions. We present the case of pulmonary MAC in a patient with a history of lung cancer requiring lobectomy, and splenic lymphoma being treated with chemotherapy, presenting with extreme fatigue and a fludeoxyglucose (FDG)-avid mass on positron emission tomography-computed tomography (PET-CT)...
October 13, 2016: Curēus
https://www.readbyqxmd.com/read/27867670/lymphoma-heterogeneity-three-different-histological-pictures-and-one-unique-clone
#7
Sara Alonso-Alvarez, Alba Redondo-Guijo, Óscar Blanco, Miguel Alcoceba, Ana Balanzategui, Juan C Caballero, Julio Dávila, Marcos González, María D Caballero, Alejandro Martín, Ramón García-Sanz
We report a patient who developed up to three different lymphomas with the same clonal IGH rearrangement. She was first diagnosed of splenic zone marginal lymphoma and relapsed for the first time with Hodgkin lymphoma histology and later with diffuse large B-cell lymphoma histology. Subsequent biopsies and analysis of clonally rearranged IGH genes helped to elucidate the clonal relationship between the three histologies and to confirm a common origin from the three tissue histologies. An integrated diagnosis should always be performed in order to achieve the most accurate diagnosis and be able to choose the best therapeutic options for our patients...
2016: Case Reports in Hematology
https://www.readbyqxmd.com/read/27843428/a-rare-case-of-gastric-variceal-hemorrhage-secondary-to-infiltrative-b-cell-lymphoma
#8
Adrienne Lenhart, Juan Fernandez-Castillo, Keith Mullins, Reena Salgia
Portal hypertension commonly arises in the setting of advanced liver cirrhosis and is the consequence of increased resistance within the portal vasculature. Less commonly, left-sided noncirrhotic portal hypertension can develop in a patient secondary to isolated obstruction of the splenic vein. We present a rare case of left-sided portal hypertension and isolated gastric varices in a patient with large B-cell lymphoma, who was treated with splenic artery embolization. The patient is a 73-year-old male with no previous history of liver disease, who presented with coffee ground emesis and melena...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27824644/rapid-fatal-acute-peripheral-t-cell-lymphoma-associated-with-igg-plasma-cell-leukemia-and-iga-hypergammaglobulinemia
#9
Nives Jonjić, Irena Seili Bekafigo, Dora Fučkar Čupić, Ksenija Lučin, Antica Duletić Načinović, Toni Valković
Simultaneous occurrence of T-cell and B-cell neoplasms is rare, and etiologic relationships between these 2 malignancies are poorly understood. We describe the case of a 66-year-old woman who was admitted to the hospital because of fever, hemoptysis, lymphadenopathy, and skin rash. Enlarged lymph nodes in axillary, pectoral, paratracheal, and periportal regions as well as slight hepatomegaly and splenomegaly were confirmed. A peripheral blood smear revealed rouleaux formation and numerous circulating plasma cells, with plasmacytoid lymphocytes...
November 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27799148/deregulated-expression-of-hdac9-in-b-cells-promotes-development-of-lymphoproliferative-disease-and-lymphoma-in-mice
#10
Veronica S Gil, Govind Bhagat, Louise Howell, Jiyuan Zhang, Chae H Kim, Sven Stengel, Francisco Vega, Arthur Zelent, Kevin Petrie
Histone deacetylase 9 (HDAC9) is expressed in B cells, and its overexpression has been observed in B-lymphoproliferative disorders, including B-cell non-Hodgkin lymphoma (B-NHL). We examined HDAC9 protein expression and copy number alterations in primary B-NHL samples, identifying high HDAC9 expression among various lymphoma entities and HDAC9 copy number gains in 50% of diffuse large B-cell lymphoma (DLBCL). To study the role of HDAC9 in lymphomagenesis, we generated a genetically engineered mouse (GEM) model that constitutively expressed an HDAC9 transgene throughout B-cell development under the control of the immunoglobulin heavy chain (IgH) enhancer (Eμ)...
December 1, 2016: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/27790140/the-droplet-digital-pcr-a-new-valid-molecular-approach-for-the-assessment-of-b-raf-v600e-mutation-in-hairy-cell-leukemia
#11
Francesca Guerrini, Matteo Paolicchi, Francesco Ghio, Elena Ciabatti, Susanna Grassi, Serena Salehzadeh, Giacomo Ercolano, Maria R Metelli, Marzia Del Re, Lorenzo Iovino, Iacopo Petrini, Giovanni Carulli, Nadia Cecconi, Martina Rousseau, Giulia Cervetti, Sara Galimberti
Hairy cell leukemia (HCL) is a chronic lymphoproliferative B-cell disorder where the B-RAF V600E mutation has been recently detected, as reported for solid neoplasias but not for other B-cell lymphomas. The digital droplet PCR (dd-PCR) is a molecular technique that, without standard references, is able to accurately quantitate DNA mutations. ddPCR could be an useful instrument for the detection of the B-RAF V600E mutation in HCL, where the minimal residual disease monitoring is fundamental for planning a patients-targeted treatment in the era of new anti-CD20 and anti-RAF compounds...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27686567/anaplastic-lymphoma-kinase-positive-large-b-cell-lymphoma-literature-review-and-report-of-an-endoscopic-fine-needle-aspiration-case-with-tigroid-backgrounds-mimicking-seminoma
#12
Hany Sakr, Michael Cruise, Prabhleen Chahal, Claudiu Cotta, James Cook, Sricharan Chalikonda, Steven Rosenblatt, Fatima Hamadeh, Omar Al-Nourhji, Charles D Sturgis
Anaplastic lymphoma kinase-positive large B-cell lymphoma (ALK+ LBCL) is a rare distinct type of non-Hodgkin's lymphoma that arises in association with alterations of the ALK gene. This distinct disease entity is typically associated with an aggressive clinical course and appears in light microscopic preparations as a monomorphic population of large, immunoblast-like cells. In this report, we describe a case of ALK+ LBCL diagnosed by transgastric endoscopic ultrasound-guided fine needle aspiration (EUS FNA) of splenic hilar lymph nodes...
September 30, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27670424/frequent-nfkbie-deletions-are-associated-with-poor-outcome-in-primary-mediastinal-b-cell-lymphoma
#13
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 D 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). Because preliminary data indicate enrichment of NFKBIE aberrations in other lymphoid malignancies, 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 central nervous system lymphoma (3% to 4%)...
December 8, 2016: Blood
https://www.readbyqxmd.com/read/27666766/immunohistochemical-analysis-of-the-novel-marginal-zone-b-cell-marker-irta1-in-malignant-lymphoma
#14
Jun-Ichiro Ikeda, Masaharu Kohara, Yoko Tsuruta, Satoshi Nojima, Shinichiro Tahara, Kenji Ohshima, Masako Kurashige, Naoki Wada, Eiichi Morii
Marginal zone lymphoma (MZL) is a low-grade B-cell lymphoma derived from marginal zone B cells. Because of a lack of specific immunohistochemical markers, MZL is mainly diagnosed based on the cytological appearance and growth pattern of the tumor. Marginal zone B cells were recently shown to selectively express immunoglobulin superfamily receptor translocation-associated 1 (IRTA1), but the antibody used in that study is not commercially available. We therefore investigated the IRTA1 expression in nonneoplastic lymphoid tissues and 261 malignant lymphomas, examining the ability of a commercially available antibody to accurately diagnose MZL...
January 2017: Human Pathology
https://www.readbyqxmd.com/read/27602118/primary-splenic-b-cell-lymphoma-unclassifiable-with-features-intermediate-between-diffuse-large-b-cell-lymphoma-and-classical-hodgkin-lymphoma-a-case-report
#15
Feng Shi, Quan Zhou, Ying Gao, Xiang-Qing Cui, Hong Chang
B-cell lymphoma (BCL), unclassifiable, with features intermediate between diffuse large BCL (DLBCL) and classical Hodgkin's lymphoma (CHL), is a novel entity to the World Health Organization classification system. These tumors are rare aggressive lymphomas that have a poor prognosis. The present study reports the case of a patient with one such lymphoma that occurred in the spleen, which expressed cluster of differentiation (CD)20, CD79α, melanoma associated antigen (mutated) 1, BCL6, CD15 and CD30. Polymerase chain reaction analysis demonstrated a clonal rearrangement of the genes coding for immunoglobulin heavy chains...
September 2016: Oncology Letters
https://www.readbyqxmd.com/read/27581334/splenic-diffuse-red-pulp-small-b-cell-lymphoma-associated-with-hepatitis-b-virus-a-report-of-two-cases
#16
Mariana Nassif Kerbauy, Carolina Melo Fernandes, Evandro Dantas Bezerra, Luis Alberto de Padua Covas Lage, Sheila Aparecida Coelho Siqueira, Juliana Pereira
CONTEXT: Splenic diffuse red-pulp small B-cell lymphoma is a rare disease, representing less than 1% of all non-Hodgkin lymphomas (NHL). This entity is characterized by involvement of bone marrow sinusoids and peripheral blood. The majority of cases are at an advanced stage when diagnosed. Its pathogenesis is still poorly understood. CASE REPORTS: We report on two patients with chronic non-replicating hepatitis B virus (HBV) who developed splenic diffuse red-pulp small B-cell lymphoma...
July 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/27580414/suppressive-effects-of-low-dose-5-fluorouracil-busulfan-or-treosulfan-on-the-expansion-of-circulatory-neutrophils-and-myeloid-derived-immunosuppressor-cells-in-tumor-bearing-mice
#17
Manuchehr Abedi-Valugerdi, Johanna Wolfsberger, Preethi Raghuram Pillai, Wenyi Zheng, Behnam Sadeghi, Ying Zhao, Moustapha Hassan
As reported previously, large numbers of neutrophils appear in the circulation during tumor development. However, the relationship between these cells and myeloid-derived suppressor cells (MDSCs), as well as their susceptibility to myelosuppressive drugs have not been yet investigated. Here, we employed a lymphoma model to characterize tumor-associated circulating neutrophils, including their sensitivity to 5-fluorouracil (5-FU), busulfan (Bu) or treosulfan (Treo). Tumor-bearing mice exhibited pronounced elevations in the numbers of splenic MDSCs and circulating neutrophils, MDSCs, and granulocytic-MDSCs (G-MDSCs)...
November 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27531255/magnetic-resonance-image-guided-radiation-therapy-for-primary-splenic-diffuse-large-b-cell-lymphoma-a-teaching-case
#18
Benjamin W Fischer-Valuck, Olga Green, Thomas Mazur, Harold Li, Anupama Chundury, Yuan James Rao, Nancy L Bartlett, Sasa Mutic, Jiayi Huang
No abstract text is available yet for this article.
January 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/27524795/differences-in-tfh-cell-response-between-the-graft-and-spleen-with-chronic-allograft-nephropathy
#19
Jian Shi, Xianlin Xu, Fengbao Luo, Qianqian Shi, Xiaozhou He, Ying Xia
The aim of this study was to investigate follicular helper T (Tfh) cell response and its difference between renal graft and spleen in a rat renal transplantation model undergoing chronic allograft nephropathy (CAN). Orthotopical kidney transplantations were performed on Fischer (F344) rats and transplanted to Lewis rats, using syngeneic Lewis-Lewis grafts as controls. Tissue samples were collected at 8 weeks post-transplantation. The status of Tfh cell response was assessed by measuring the levels of transcription factor B-cell lymphoma 6 (Bcl-6), interleukin 21 (IL-21), chemokine receptor type 5 (CXCR5), and B cell activating factor belonging to the TNF family (BAFF)...
August 12, 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27503810/nf-%C3%AE%C2%BAb-deregulation-in-splenic-marginal-zone-lymphoma
#20
Valeria Spina, Davide Rossi
Splenic marginal zone lymphoma is a rare mature B-cell malignancy involving the spleen, bone marrow and blood. Over the past years, the rapid expansion of sequencing technologies allowing the genome-wide assessment of genomic, epigenetic and transcriptional changes has revolutionized our understanding of the biological basis of splenic marginal zone lymphoma by providing a comprehensive and unbiased view of the genes/pathways that are deregulated in this disease. NF-κB is a family of transcription factors that plays critical roles in development, survival, and activation of B lymphocytes...
August 2016: Seminars in Cancer Biology
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