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Double hit lymphoma

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https://www.readbyqxmd.com/read/27913503/diffuse-large-b-cell-lymphoma-r-chop-failure-what-to-do
#1
Bertrand Coiffier, Clémentine Sarkozy
Although rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) is the standard treatment for patients with diffuse large B-cell lymphoma (DLBCL), ∼30% to 50% of patients are not cured by this treatment, depending on disease stage or prognostic index. Among patients for whom R-CHOP therapy fails, 20% suffer from primary refractory disease (progress during or right after treatment) whereas 30% relapse after achieving complete remission (CR). Currently, there is no good definition enabling us to identify these 2 groups upon diagnosis...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27910030/recurrent-cytogenetic-abnormalities-in-non-hodgkin-s-lymphoma-and-chronic-lymphocytic-leukemia
#2
Edmond S K Ma
Characteristic chromosomal translocations are found to be associated with subtypes of B-cell non-Hodgkin lymphoma (NHL), for example t(8;14)(q24;q32) and Burkitt lymphoma, t(14;18)(q32;q21) and follicular lymphoma, and t(11;14)(q13;q32) in mantle cell lymphoma. Only few recurrent cytogenetic aberrations have been identified in the T-cell NHL and the best known is the ALK gene translocation t(2;5)(p23;q35) in anaplastic large cell lymphoma. Since lymph node or other tissue is seldom submitted for conventional cytogenetics study, alternative approaches for translocation detection are polymerase chain reaction (PCR) or fluorescence in situ hybridization (FISH)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27899392/circulating-lymphoma-cells-of-double-hit-lymphoma
#3
Uqba Khan, Carrie Dul
No abstract text is available yet for this article.
November 29, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27888878/the-spectrum-of-double-hit-lymphomas
#4
REVIEW
Jeremy S Abramson
Double-hit lymphomas (DHLs) characterize a unique subset of B-cell non-Hodgkin lymphomas. DHL typically presents in older adults with high-risk clinical features. This entity carries a significantly inferior prognosis compared with typical cases of diffuse large B-cell lymphoma; however, emerging literature can identify discrete clinical features within DHL that are associated with a favorable prognosis. Emerging literature is also demonstrating that intensive upfront treatment strategies may improve outcome...
December 2016: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/27888664/ebv-associated-but-hhv8-unrelated-double-hit-effusion-based-lymphoma
#5
Bo-Jung Chen, David Yen-Ting Chen, Chun-Chi Kuo, Shih-Sung Chuang
Effusion-based lymphoma is a rare and unique type of large B-cell lymphoma presenting in effusion without a mass lesion. It shares many clinicopathological features with primary effusion lymphoma (PEL), but is distinct from PEL by the absence of HHV8 association. Double hit lymphoma (DHL) is an aggressive B-cell lymphoma, defined by concurrent rearrangement of MYC and BCL2 or BCL6. DHL often presents as lymphadenopathy or an extranodal mass, but rarely occurs in effusion. Here we report a 61-year-old male with alcoholic cirrhosis presenting as massive ascites and left pleural effusion...
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27848920/burkitt-cells-on-a-peripheral-blood-smear-how-to-deal-with
#6
Marie Wyrwas, Jessica Michel, Isabelle Guibaud, Jean-François Lesesve, Blandine Bénet
The diagnosis of double hit lymphoma remains a challenge for the biologist for a good management of the patient. This new category of lymphoma "double hit" (DH) is part of a new entity of the WHO classification 2008: « Unclassifiable B lymphoma with features intermediate between diffuse large cell B lymphoma and Burkitt's lymphoma ». It is defined by the presence of a breakpoint at the locus 8q24 of the c-MYC gene associated with a recurrent translocation involving BCL2 genes primarily BCL6 or more rarely CCDN1 or BCL3 genes...
December 1, 2016: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/27821509/approach-to-the-diagnosis-and-treatment-of-high-grade-b-cell-lymphomas-with-myc-and-bcl2-and-or-bcl6-rearrangements
#7
Pierre Sesques, Nathalie A Johnson
High grade B cell lymphomas (HGBL) with MYC and BCL2 and/or BCL6 rearrangements, so-called "double hit" lymphomas (HGBL-DH), are aggressive lymphomas that form a separate provisional entity in the 2016 revised World Heath Organization Classification of Lymphoid Tumours. Fluorescence in situ hybridization (FISH) will be required to identify HGBL-DH and will re-classify a subset of diffuse large B cell lymphomas (DLBCL) and HGBL with features intermediate between DLBCL and Burkitt lymphoma into this new category...
November 7, 2016: Blood
https://www.readbyqxmd.com/read/27810071/myc-rearranged-b-cell-neoplasms-impact-of-genetics-on-classification
#8
Sabine Haberl, Torsten Haferlach, Anna Stengel, Sabine Jeromin, Wolfgang Kern, Claudia Haferlach
A cohort comprising 156 patients with B-cell neoplasms harboring an MYC rearrangement was analyzed with respect to phenotypic presentation, molecular markers (TP53, MYC and ID3) and additional cytogenetic abnormalities (concomitantly occurring BCL2, BCL6 and/or CCND1 rearrangements; double, triple or quadruple hit lymphomas = multiple hit lymphomas). MYC translocations occurred as single hit (only MYC rearranged, 63%) or multiple hit lymphoma (37%) and presented as acute leukemia (AL) (14%), Burkitt lymphoma (30%), chronic lymphocytic leukemia (CLL) (21%) or other mature B-cell neoplasms (35%)...
October 2016: Cancer Genetics
https://www.readbyqxmd.com/read/27806850/aggressive-b-cell-lymphomas-frequency-immunophenotype-and-genetics-in-a-reference-laboratory-population
#9
Yalda B Naeini, Annie Wu, Dennis P O'Malley
Diffuse large B-cell lymphoma (DLBCL) is the most common type of lymphoma worldwide. The current World Health Organization classification includes several subtypes based on a combination of clinical, immunohistochemical, and genetic differences. Other aggressive variants of B-cell lymphomas, including Burkitt lymphoma and double-hit lymphomas are part of the differential diagnosis and often have overlapping features with DLBCL. In this study, we evaluated 760 of cases of DLBCL and other aggressive B-cell lymphomas using a relatively uniform immunohistochemical panel and genetic methods...
December 2016: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/27806821/double-hit-lymphoma-arare-subset-of-diffuse-large-b-cell-lymphoma-with-poor-outcome
#10
Sajid Zaman, Jawad A Gillani, Rashid Rasheed
Double-hit lymphoma (DHL) has been identified as a subset of diffuse large B-cell lymphoma with poor clinical outcomes. It is because of genetic translocation of C-myc and Bcl2 gene that make it more aggressive and un-responsive to conventional and salvage treatments. DHLis an extremely rare entity of non-Hodgkin's lymphoma (NHL) having no established incidence data so far. In literature very limited data is available to guide therapeutic decisions and despite aggressive chemotherapy followed by autologus hematopoietic cell transplantation, outcomes still remain poor...
October 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27803769/hepatitis-c-and-double-hit-b-cell-lymphoma-successfully-treated-by-antiviral-therapy
#11
Giovanni Galati, Lorenzo Rampa, Umberto Vespasiani-Gentilucci, Mirella Marino, Francesco Pisani, Carlo Cota, Alessandro Guidi, Antonio Picardi
B cells lymphoma is one of the most challenging extra-hepatic manifestations of hepatitis C virus (HCV). Recently, a new kind of B-cell lymphoma, named double-hit B (DHL), was characterized with an aggressive clinical course whereas a potential association with HCV was not investigated. The new antiviral direct agents (DAAs) against HCV are effective and curative in the majority of HCV infections. We report the first case, to our knowledge, of DHL and HCV-infection successfully treated by new DAAs. According to our experience, a DHL must be suspected in case of HCV-related lymphoma, and an early diagnosis could direct towards a different hematological management because a worse prognosis might be expected...
October 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27776009/mantle-cell-lymphoma-with-myc-rearrangement-a-report-of-17-patients
#12
Zhihong Hu, L Jeffrey Medeiros, Zi Chen, Weina Chen, Shaoying Li, Sergej N Konoplev, Xinyan Lu, Lan V Pham, Ken H Young, Wei Wang, Shimin Hu
MYC rearrangement in mantle cell lymphoma (MCL) is rare, and its clinicopathologic significance is not well defined. We report 17 cases of MCL with 8q24/MYC rearrangement, detected at the time of initial diagnosis of MCL in 10 patients and subsequently during the clinical course in 7 patients. There were 12 men and 5 women with a median age of 61 years (range, 49 to 81 y). Fourteen patients had lymphadenopathy (Ann Arbor stage III/IV), and 3 patients presented with a leukemic pattern without lymphadenopathy...
October 21, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27773559/immunophenotypic-and-genetic-characteristics-of-diffuse-large-b-cell-lymphoma-in-taiwan
#13
Sheng-Tsung Chang, Shang-Wen Chen, Chung-Han Ho, Chun-Chi Kuo, Seiji Sakata, Kengo Takeuchi, Shih-Sung Chuang
BACKGROUND/PURPOSE: Diffuse large B-cell lymphoma (DLBCL) is the most common lymphoma type. The immunophenotypic and genetic features of DLBCL in Taiwan have not been characterized. METHODS: In this study, we performed immunohistochemical analysis and interphase fluorescence in situ hybridization (FISH) using tissue microarray sections to investigate a cohort of unselected DLBCL cases in a single institution in Taiwan from 1990 to 2010. RESULTS: Of the 153 cases investigated, CD10, bcl-6, and MUM1 were expressed in 16...
November 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/27739436/p53-expression-correlates-with-poorer-survival-and-augments-the-negative-prognostic-effect-of-myc-rearrangement-expression-or-concurrent-myc-bcl2-expression-in-diffuse-large-b-cell-lymphoma
#14
Xuan J Wang, L Jeffrey Medeiros, Carlos E Bueso-Ramos, Guilin Tang, Sa Wang, Yasuhiro Oki, Parth Desai, Joseph D Khoury, Roberto N Miranda, Zhenya Tang, Nishitha Reddy, Shaoying Li
In patients with diffuse large B-cell lymphoma, MYC rearrangement (MYC-R), MYC expression, or concurrent expression of MYC and BCL2 is associated with a poorer prognosis. P53 expression also has been shown to confer inferior survival in diffuse large B-cell lymphoma patients, but less is known about the role of P53 expression in those with MYC-R, MYC expression (MYC+), or MYC&BCL2 co-expression (MYC+/BCL2+). We studied P53 expression in 201 patients with untreated de novo diffuse large B-cell lymphoma. Sixty-seven (33%) cases were P53 positive, 56 (28%) had MYC-R (including 17 MYC/BCL2 double hit lymphoma), 86 (45%) were MYC+/BCL2+, and 47 (24%) were positive for both MYC and P53...
October 14, 2016: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/27717585/high-grade-b-cell-lymphoma-with-rearrangements-of-myc-and-bcl2-and-or-bcl6-double-hit-and-triple-hit-lymphomas-and-double-expressing-lymphoma
#15
Allison Rosenthal, Anas Younes
Diffuse large B-cell lymphomas with aberrations in MYC, BCL2 and/or BCL6 by genetic alterations or protein expression represent a group of high grade B-cell lymphomas with inferior outcomes when treated with standard RCHOP chemotherapy. As a result, intensified induction regimens have been suggested in an effort to improve outcomes. Conclusions to date have largely been drawn from retrospective data although prospective data is slowly starting to emerge. Chemoimmunotherapy refractoriness is problematic and relapse rates are high...
September 30, 2016: Blood Reviews
https://www.readbyqxmd.com/read/27665744/primary-cutaneous-b-cell-lymphoma-other-than-marginal-zone-clinicopathologic-analysis-of-161-cases-comparison-with-current-classification-and-definition-of-prognostic-markers
#16
Marco Lucioni, Emilio Berti, Luca Arcaini, Giorgio A Croci, Aldo Maffi, Catherine Klersy, Gaia Goteri, Carlo Tomasini, Pietro Quaglino, Roberta Riboni, Mariarosa Arra, Elena Dallera, Vieri Grandi, Mauro Alaibac, Antonio Ramponi, Sara Rattotti, Maria Giuseppina Cabras, Silvia Franceschetti, Giulio Fraternali-Orcioni, Nicola Zerbinati, Francesco Onida, Stefano Ascani, Maria Teresa Fierro, Serena Rupoli, Marcello Gambacorta, Pier Luigi Zinzani, Nicola Pimpinelli, Marco Santucci, Marco Paulli
Categorization of primary cutaneous B-cell lymphomas (PCBCL) other than marginal zone (MZL) represents a diagnostic challenge with relevant prognostic implications. The 2008 WHO lymphoma classification recognizes only primary cutaneous follicular center cell lymphoma (PCFCCL) and primary cutaneous diffuse large B-cell lymphoma, leg type (PCDLBCL-LT), whereas the previous 2005 WHO/EORTC classification also included an intermediate form, namely PCDLBCL, other. We conducted a retrospective, multicentric, consensus-based revision of the clinicopathologic characteristics of 161 cases of PCBCL other than MZL...
September 26, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27649953/primary-cardiac-diffuse-large-b-cell-lymphoma-in-immunocompetent-patients-clinical-histologic-immunophenotypic-and-genotypic-features-of-3-cases
#17
Gwyneth Soon, Guan Wei Ow, Hian Li Chan, Siok Bian Ng, Shi Wang
Primary cardiac lymphoma (PCL) is a rare extranodal lymphoma that involves only the heart and/or pericardium. Primary cardiac lymphoma is much less common in immunocompetent patients compared with those who are immunosuppressed. Patients with PCL have variable clinical manifestations that may lead to misdiagnosis and delay in treatment. Modern radiologic imaging now allows for earlier detection of these tumors. This study describes the clinical, histologic/cytologic, immunophenotypic, and molecular genetic findings for 3 immunocompetent patients with primary cardiac diffuse large B-cell lymphoma...
October 2016: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/27628560/-double-hit-follicular-lymphoma-with-bcl2-and-myc-translocations
#18
Mirei Horiuchi, Hoyuri Fuseya, Minako Tsutsumi, Yoshiki Hayashi, Kiyoyuki Hagihara, Hiroshi Kanashima, Takafumi Nakao, Yuko Fukushima, Takeshi Inoue, Takahisa Yamane
Double-hit lymphomas are rare tumors that are defined by a chromosomal breakpoint affecting the MYC/8q24 locus in combination with another recurrent breakpoint, mainly a t(14; 18)(q32;q21)involving BCL2. We report a case of a 38-yearold woman with a 2-month history of abdominaldistention. 18F-FDG PET showed multiple positive systemic lymph nodes, positive peritoneum, and multiple positive intra-abdominal masses. Histopathology results of the cervical lymph node were compatible with double-hit follicular lymphoma(Grade 3A)because fluorescence in situ hybridization(FISH)demonstrated both MYC rearrangement and BCL2 gene fusion...
September 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/27606052/evolution-of-frontline-treatment-of-diffuse-large-b-cell-lymphoma-a-brief-review-and-recent-update
#19
REVIEW
Jung Yong Hong, Cheolwon Suh, Won Seog Kim
Various strategies have been implemented to improve the outcomes of diffuse large B-cell lymphoma (DLBCL). In recent years, remarkable advances have been achieved, based on the discovery of cell-of-origin in DLBCL and on more effective targeted agents. This commentary will summarize recent updates on the evolution of frontline therapies for DLBCL, focusing on the upcoming promising frontline chemotherapy platforms and on activated B-cell subtype DLBCL and double-hit DLBCL.
2016: F1000Research
https://www.readbyqxmd.com/read/27544800/double-hit-follicular-lymphoma-with-myc-and-bcl2-translocations-a-study-of-7-cases-with-a-review-of-literature
#20
Yuan Miao, Shimin Hu, Xinyan Lu, Shaoying Li M D, Wei Wang, L Jeffrey Medeiros, Pei Lin
Follicular lymphoma (FL) with MYC and BCL2 translocations, so-called double-hit follicular lymphoma (DH-FL), is rare. Here we report the clinicopathologic features of 7 cases of DH-FL. All neoplasms had a follicular pattern (1 partially diffuse). Five cases were of predominantly low grade, 4 of which had focal (≤ 20%) grade 3 A areas, and 2 cases were of grade 3. All cases were positive for pan B-cell antigens, CD10 and BCL6; 6 cases were positive for BCL2. Ki67 was ≤50% in 6 cases and 90% in one grade 3 case...
August 17, 2016: Human Pathology
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