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Primary b cell lymphoma

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https://www.readbyqxmd.com/read/28340172/repositioning-disulfiram-as-a-radiosensitizer-against-atypical-teratoid-rhabdoid-tumor
#1
Young Eun Lee, Seung Ah Choi, Pil Ae Kwack, Hak Jae Kim, Il Han Kim, Kyu-Chang Wang, Ji Hoon Phi, Ji Yeoun Lee, Sangjoon Chong, Sung-Hye Park, Kyung Duk Park, Do Won Hwang, Kyeung Min Joo, Seung-Ki Kim
Background.: Atypical teratoid/rhabdoid tumor (AT/RT) is one of the most common malignant brain tumors in infants. Although cancer stem cells of AT/RT express aldehyde dehydrogenase (ALDH), effective chemotherapies against AT/RT have not been established. Here, we examined radiosensitizing effects of disulfiram (DSF), an irreversible inhibitor of ALDH against AT/RT for a novel therapeutic method. Methods.: Patient-derived primary cultured AT/RT cells (SNU.AT/RT-5 and SNU...
March 17, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28339134/paranasal-sinus-lymphoma-retrospective-review-with-focus-on-clinical-features-histopathology-prognosis-and-relationship-to-systemic-lymphoma
#2
Brynn N Wajda, Mindy R Rabinowitz, Gurston G Nyquist, Stacey K Mardekian, Marc R Rosen, Michael P Rabinowitz
BACKGROUND: Paranasal sinus lymphoma is a rare clinical entity. METHODS: We conducted a retrospective case series of 68 patients with biopsy-confirmed paranasal sinus lymphoma with attention on systemic disease association. RESULTS: Of 63 patients with paranasal sinus lymphoma, 35 (56%) had systemic involvement. Four patient groups were identified: (1) primary paranasal sinus lymphoma (44%); (2) systemic disease occurring concurrently with paranasal sinus lymphoma (25%); (3) paranasal sinus lymphoma with relapse of preexisting systemic lymphoma (22%); and (4) progression to systemic disease after primary paranasal sinus lymphoma (8%)...
March 24, 2017: Head & Neck
https://www.readbyqxmd.com/read/28337783/primary-cutaneous-anaplastic-large-cell-lymphoma-with-intralymphatic-involvement-associated-with-chronic-lymphedema
#3
Peiyuan Fan, Lin Nong, Jingru Sun, Xiaoqing Liu, Marshall E Kadin, Ting Li, Ping Tu, Yang Wang
Chronic lymphedema predisposes to develop malignant cutaneous tumors, including angiosarcoma, Kaposi's sarcoma and B cell lymphoma. T cell malignancy has rarely been associated with chronic lymph stasis. Here we report a case of primary cutaneous anaplastic large cell lymphoma (pcALCL) with lymphatic spread associated with chronic lymphedema. The patient is a 56-year-old man who received orchiectomy and right inguinal lymphadenectomy for malignant seminoma 10 years ago, which led to prominent lymphedema of the right leg...
March 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28335496/quantitative-analysis-of-the-kshv-transcriptome-following-primary-infection-of-blood-and-lymphatic-endothelial-cells
#4
A Gregory Bruce, Serge Barcy, Terri DiMaio, Emilia Gan, H Jacques Garrigues, Michael Lagunoff, Timothy M Rose
The transcriptome of the Kaposi's sarcoma-associated herpesvirus (KSHV/HHV8) after primary latent infection of human blood (BEC), lymphatic (LEC) and immortalized (TIME) endothelial cells was analyzed using RNAseq, and compared to long-term latency in BCBL-1 lymphoma cells. Naturally expressed transcripts were obtained without artificial induction, and a comprehensive annotation of the KSHV genome was determined. A set of unique coding sequence (UCDS) features and a process to resolve overlapping transcripts were developed to accurately quantitate transcript levels from specific promoters...
March 19, 2017: Pathogens
https://www.readbyqxmd.com/read/28333095/cytosolic-bnip3-dimer-interacts-with-mitochondrial-bax-forming-heterodimers-in-the-mitochondrial-outer-membrane-under-basal-conditions
#5
Ulrike B Hendgen-Cotta, Sonja Esfeld, Katharina Rudi, Ilkka Miinalainen, Johann P Klare, Tienush Rassaf
The primary function of mitochondria is energy production, a task of particular importance especially for cells with a high energy demand like cardiomyocytes. The B-cell lymphoma (BCL-2) family member BCL-2 adenovirus E1B 19 kDa-interacting protein 3 (BNIP3) is linked to mitochondrial targeting after homodimerization, where it functions in inner membrane depolarization and permeabilization of the mitochondrial outer membrane (MOM) mediating cell death. We investigated the basal distribution of cardiac BNIP3 in vivo and its physical interaction with the pro-death protein BCL2 associated X, apoptosis regulator (BAX) and with mitochondria using immunoblot analysis, co-immunoprecipitation, and continuous wave and pulsed electron paramagnetic resonance spectroscopy techniques...
March 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28331364/silicone-induced-granuloma-of-breast-implant-capsule-sigbic-similarities-and-differences-with-anaplastic-large-cell-lymphoma-alcl-and-their-differential-diagnosis
#6
REVIEW
Eduardo de Faria Castro Fleury, Milena Morais Rêgo, Luciana Costa Ramalho, Veronica Jorge Ayres, Rodrigo Oliveira Seleti, Carlos Alberto Pecci Ferreira, Decio Roveda
Primary breast lymphoma is a rare disease and accounts for 0.5% of cases of breast cancer. Most primary breast lymphomas develop from B cells, and the involvement of T cells is rare. Anaplastic large cell lymphoma (ALCL) is a recently discovered T-cell lymphoma associated with breast implants. Only a few cases have been reported to date. It is believed that the incidence of ALCL is increasing because of the increasing number of breast implants. The clinical presentation is variable and can manifest as a palpable mass in the breast or armpit, breast pain, or capsular contracture...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28329572/asymptomatic-and-infiltrated-plaque-on-the-left-cheek
#7
Ricardo Ruiz-Villaverde, Daniel Sánchez-Cano, Ana Belén Rodrigo-Sánchez, José Aneiros-Fernández
Centrofollicular B Cell lymphomas constitute 25% of non-Hodgkin lymphomas that originate in the skin. They are the second in frequency of those lymphomas with extranodal location after gastrointestinal B lymphomas. The primary cutaneous centrofollicular lymphoma is characterized by the neoplastic proliferation of centrocytes and centroblasts confined to the skin. The prognosis is considered excellent with low probability of extracutaneous dissemination. We present a patient recently diagnosed in our unit with a good response to radiotherapy and complete resolution of the tumor with mild atrophy of the site...
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329553/primary-cutaneous-marginal-zone-lymphoma
#8
Joshua Farhadian, Vtaly Terushkin, Shane A Meehan, Jo-Ann Latkowski
Primary cutaneous B cell lymphomas (PCBCL) are thesecond most common type of primary cutaneouslymphoma. The three main types of PCBCL areprimary cutaneous marginal-zone lymphoma(PCMZL), primary cutaneous follicle-centerlymphoma, and primary cutaneous diffuse largeB-cell lymphoma, leg type. PCMZL has an indolentcourse with a five-year survival rate approaching99%. Lesions most often present on the trunk or armas erythematous-to-violaceous papules, plaques, ornodules. Approximately one-half of patients havesolitary skin lesions...
December 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28325356/primary-cutaneous-spindle-cell-b-cell-lymphoma-a-report-of-three-cases-and-review-of-the-literature
#9
Cynthia M Magro, Shabnam Momtahen
Primary cutaneous spindle cell lymphoma is a rare variant of primary cutaneous B-cell lymphoma (PCBCL). Herein, we present 3 cases of primary cutaneous spindle cell B cell lymphoma, 2 males and one female (age range 66-76years). The patients presented with solitary skin lesions, distributed in the head and neck area and chest. The dominant cell size was in the intermediate to large cell size range. While the main cell type was a spindled one, other cells with a nuclear morphology quite typical for a centroblast were noted and as well careful inspection in the three cases revealed a focal residuum of germinal center-like structures...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28325057/-multiple-organ-resection-for-extensive-lymphoma-in-the-abdominal-cavity
#10
L Hlaváčová, R Vrba, M Gregořík, Č Neoral
Extranodal lymphomas are quite rare, and they usually present as non-Hodgkin lymphomas. The most common localization is the gastrointestinal tract, mainly the stomach - primary gastric lymphoma; histologically, diffuse large B-cell lymphoma (DLBCL) is the most frequent type. The diagnosis is established based on endoscopic examination with biopsy of the tumor. It is an aggressive tumor, highly chemosensitive, which is why primary systemic chemotherapy is indicated in early, as well as late, stages of the disease...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28323289/clonality-testing-of-lymphoproliferative-disorders-in-a-large-cohort-of-primary-and-consultant-biopsies
#11
Michaela Svachova, Martin Tichy, Patrik Flodr, Jana Steigerova, Zdenek Kolar, Jan Bouchal
BACKGROUND: Lymphoproliferative disease often presents the clinician and pathologist with a diagnostic dilemma, particularly in the early course of the disease. METHODS: We used modified BIOMED-2 protocols to detect monoclonal expansions of immunoglobulin heavy chain (IgH) and T-cell receptor (TCR) genes in 957 formalin-fixed paraffin-embedded samples from 717 patients. To eliminate false-positive results, heteroduplex analysis was used after PCR reactions. The impact of different fixatives on DNA quality and performance of PCR was assessed...
March 14, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28321110/primary-pulmonary-diffuse-large-b-cell-non-hodgkin-s-lymphoma-a-case-report-and-literature-review
#12
Ziqiang Zhu, Wei Liu, Omar Mamlouk, James E O'Donnell, Debabrata Sen, Boris Avezbakiyev
BACKGROUND Primary pulmonary diffuse large B cell lymphoma (DLBCL) is extremely rare neoplasm representing only 0.5-1% of primary pulmonary malignancies. These patients usually have non-specific clinical presentation and radiological findings. Therefore, it is important to increase awareness of this rare disease, as the correct characterization of the tumors will have therapeutic and prognostic implications. CASE REPORT We present the case of a middle-aged Hispanic woman with chronic cough and an abnormal chest X-ray revealing a lung mass, who was found to have primary pulmonary DLBCL...
March 21, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28321095/primary-adrenal-diffuse-large-b-cell-lymphoma-positive-for-cd5-and-cd10
#13
Yoshikazu Yamamoto, Yuichi Sumii, Yutaro Shiraishi, Kazuhiro Ikeuchi, Haruto Yamada, Daigo Niiya, Yasuhiro Shiote, Kazuhiko Yamamoto, Kenji Imajo
A 69-year-old man presented with back pain over the prior few months and was hospitalized because of bilateral adrenal masses and fracture of the left sixth rib. The mass on the right measured 6.5×3.6×7.0 cm, that on the left 8.1×4.8×6.9 cm, on CT. The final diagnosis was CD5- and CD10-positive primary adrenal diffuse large B-cell lymphoma (PA-DLBCL) with rib involvement. After EPOCH therapy accompanied with rituximab and intrathecal treatment, the tumors decreased dramatically. However, he died due to disease progression 8 months after the diagnosis...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28321070/primary-malignant-lymphoma-originating-from-the-chest-wall-without-preceding-pleural-disease
#14
Yumi Iwasa, Asuka Okada, Hideaki Takenaka, Terukazu Takahashi, Nobuo Koguchi, Kumiko Katayama, Shinsuke Murakami, Sumito Choh, Koichi Tomoda, Hiroshi Kimura
An 84-year-old woman presented to our hospital with dyspnea on exertion and left back pain. Chest X-ray and chest computed tomography (CT) revealed an irregular pleural mass invading her left chest wall with rib destruction and pleural effusion. CT-guided needle biopsy revealed diffuse large B-cell lymphoma. Low-dose oral etoposide produced a complete response, and she continued oral chemotherapy for one year after the diagnosis and maintained good performance status. We herein report a very rare case of non-pyothorax-associated lymphoma that nonetheless resulted in great recovery...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28318892/primary-mediastinal-large-b-cell-lymphoma
#15
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...
January 21, 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28302137/mutations-of-crebbp-and-socs1-are-independent-prognostic-factors-in-diffuse-large-b-cell-lymphoma-mutational-analysis-of-the-sakk-38-07-prospective-clinical-trial-cohort
#16
Darius Juskevicius, David Jucker, Dirk Klingbiel, Christoph Mamot, Stephan Dirnhofer, Alexandar Tzankov
BACKGROUND/PURPOSE: Recently, the mutational background of diffuse large B cell lymphoma (DLBCL) has been revealed, identifying specific genetic events that drive lymphomagenesis. However, the prognostic value of these mutations remains to be determined. Prognostic biomarkers in DLBCL are urgently needed, since the current clinical parameter-based factors (e.g., International Prognostic Index (IPI)) are insufficient, particularly in identifying patients with poor prognosis who might benefit from alternative treatments...
March 17, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28297626/clinical-applications-of-the-genomic-landscape-of-aggressive-non-hodgkin-lymphoma
#17
Andrea B Moffitt, Sandeep S Dave
In this review, we examine the genomic landscapes of lymphomas that arise from B, T, and natural killer cells. Lymphomas represent a striking spectrum of clinical behaviors. Although some lymphomas are curable with standard therapy, the majority of the affected patients succumb to their disease. Here, the genetic underpinnings of these heterogeneous entities are reviewed. We consider B-cell lymphomas, including Burkitt lymphoma, diffuse large B-cell lymphoma, Hodgkin lymphoma, and primary mediastinal B-cell lymphoma...
March 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28291124/myc-protein-positive-diffuse-large-b-cell-lymphoma-features-an-activated-b-cell-receptor-signal-pathway
#18
Wei-Ge Wang, Xiang-Nan Jiang, Ze-Bing Liu, Xiao-Yan Zhou, Xiao-Qiu Li
Components of the B-cell receptor (BCR) signaling pathway represent promising therapeutic targets in diffuse large B-cell lymphoma (DLBCL) and other B-cell malignancies. MYC, a transcriptional factor and oncoprotein, is overexpressed in a fraction of DLBCL and indicates poor prognosis and aggressive clinical course when treated with rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP). However, BCR signaling status in MYC-positive DLBCL cases and the potential efficacy of BCR signal inhibitors in treating this aggressive disease are unknown...
April 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28288979/crebbp-loss-cooperates-with-bcl2-over-expression-to-promote-lymphoma-in-mice
#19
Idoia García-Ramírez, Saber Tadros, Inés González-Herrero, Alberto Martín-Lorenzo, Guillermo Rodríguez-Hernández, Dalia Moore, Lucía Ruiz-Roca, Oscar Blanco, Diego Alonso-López, Javier De Las Rivas, Keenan Hartert, Romain Duval, David Klinkebiel, Martin Bast, Julie Vose, Matthew Lunning, Kai Fu, Timothy Greiner, Fernando Rodrigues-Lima, Rafael Jiménez, Francisco Javier García Criado, María Begoña García Cenador, Paul Brindle, Carolina Vicente-Dueñas, Ash Alizadeh, Isidro Sánchez-García, Michael R Green
CREBBP is targeted by inactivating mutations in follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL). Here, we provide evidence from transgenic mouse models that Crebbp deletion results in deficits in B-cell development and can cooperate with Bcl2 over-expression to promote B-cell lymphoma. Through transcriptional and epigenetic profiling of these B-cells we found that Crebbp inactivation was associated with broad transcriptional alterations, but no changes in the patterns of histone acetylation at the proximal regulatory regions of these genes...
March 13, 2017: Blood
https://www.readbyqxmd.com/read/28287209/-primary-cardiac-lymphoma-in-an-immunocompetent-young-adult-outcome-with-chemotherapy
#20
Gian Piero Perna, Guido Gini, Michela Brambatti, Ilaria Battistoni, Marco Marini, Luca Angelini, Matteo Francioni, Gaia Goteri, Melissa Dottori
Primitive cardiac lymphoma (PCL) is a rare disease accounting for only 1-2% of primary cardiac tumors. Diffuse large B cell lymphoma is the most common type and shows a rapid progression with poor prognosis. The clinical presentation of PCL is nonspecific, and echocardiographic study is essential to the initial work-up. Magnetic resonance imaging and computed tomography scan are the methods of choice for the assessment of tumor extension. The definitive diagnosis is histopathology examination. Chemotherapy and radiotherapy represent the best treatment and should be started promptly after PCL diagnosis...
January 2017: Giornale Italiano di Cardiologia
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