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Diffuse Large B-cell Lymphoma

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https://www.readbyqxmd.com/read/28737285/role-of-endoscopic-ultrasound-guided-fine-needle-aspiration-biopsy-in-the-diagnosis-of-lymphoma-of-the-pancreas-a-clinicopathological-study-of-nine-cases
#1
S Sadaf, A Loya, N Akhtar, M A Yusuf
OBJECTIVE: Endoscopic ultrasound-guided-fine needle aspiration (EUS-FNA) is an established first-line procedure in the management of solid and cystic pancreatic masses. Lymphoma is an uncommon diagnosis in EUS-FNA of the pancreas, and it is more common for such a diagnosis to be because of secondary involvement of the pancreas by a lymphoproliferative disorder than for this to represent isolated primary pancreatic lymphoma (PPL). We present the clinical, EUS and cytological features of these lesions...
July 24, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28736928/mean-platelet-volume-predicts-prognosis-in-patients-with-diffuse-large-b-cell-lymphoma
#2
Shujuan Zhou, Yongyong Ma, Yifen Shi, Liyuan Tang, Zhouyi Zheng, Fang Fang, Jianhua Feng, Yu Zhang, Lan Sun, Yi Chen, Bin Liang, Songfu Jiang, Zhijian Shen, Kang Yu, Siqian Wang
To determine the prognostic value of baseline mean platelet volume (MPV) in diffuse large B-cell lymphoma (DLBCL) patients. We retrospectively analyzed 161 DLBCL patients who received R-CHOP chemotherapy. The associations between MPV and clinicopathological factors were assessed. A low MPV (MPV ≤ 9.1 fl, cut-off was calculated by receiver operating characteristics) was associated with any other clinicopathological factors. Patients with MPV ≤ 9.1 fl experienced a shorter progression-free survival (PFS) (2-year PFS rate, 60...
July 23, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28735665/prevalence-of-foxp3-cells-does-not-correlate-with-ki67-expression-in-canine-diffuse-large-b-cell-lymphoma
#3
C F Muir, S L Priestnall, A Hibbert, C Brown, O A Garden, T Scase
Diffuse large B-cell lymphoma (DLBCL) is the most common type of canine lymphoma and survival times are currently <1 year. Manipulation of the tumour microenvironment, of which the regulatory T cell (Treg) is a principal player, represents a potentially exciting way to curb the rapid proliferation of neoplastic cells. Tregs, characterized by the stable expression of the transcription factor FoxP3, suppress innate and adaptive arms of the immune response and represent a potential therapeutic target within neoplastic lymph nodes...
July 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28733977/molecular-classification-of-tumor-cells-in-a-patient-with-intravascular-large-b-cell-lymphoma
#4
W M Bauer, M C Aichelburg, J Griss, C Skrabs, I Simonitsch-Klupp, A I Schiefer, H Kittler, U Jäger, M Zeyda, R Knobler, G Stingl
BACKGROUND: Intravascular large B-cell lymphoma (IVLBCL) is a rare type of extranodal large B-cell lymphoma. It is characterized by the proliferation of tumour cells exclusively intraluminally in small blood vessels of different organs. The clinical manifestation depends on the type of organ affected, additionally, a haemophagocytic syndrome can be observed in some patients. OBJECTIVE: Due to the rarity of this lymphoma and in spite of detailed immunohistochemical investigations the exact nosology of this cancer is only incompletely understood...
July 22, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28733525/ackr3-expression-on-diffuse-large-b-cell-lymphoma-is-required-for-tumor-spreading-and-tissue-infiltration
#5
Viola Puddinu, Sabrina Casella, Egle Radice, Sylvia Thelen, Stefan Dirnhofer, Francesco Bertoni, Marcus Thelen
Diffuse large B cell lymphoma (DLBCL) is the most frequent lymphoma accounting for more than the 30% of the cases. Involvement of extranodal sites, such as bone marrow and central nervous system, is associated with poor prognosis. A contribution of the chemokine system in these processes is assumed as it is known as a critical regulator of the metastatic process in cancer. The atypical chemokine receptor 3 (ACKR3), which does not couple to G-proteins and does not mediate cell migration, acts as a scavenger for CXCL11 and CXCL12, interfering with the tumor homing CXCL12/CXCR4 axis...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733137/can-metabolic-tumour-parameters-on-primary-staging-18-f-fdg-pet-ct-contribute-to-risk-stratification-of-primary-central-nervous-system-lymphomas-for-patient-management-as-a-prognostic-model
#6
K Okuyucu, E Alagoz, S Ince, S Ozaydin, N Arslan
OBJECTIVE: Primary central nervous system (CNS) lymphoma is an aggressive and fatal extranodal non-Hodgkin lymphoma (NHL) jailed in CNS at initial diagnosis. Its prognosis is poor and the disease has a fatal outcome when compared with systemic NHL. A few baseline risk stratification scoring systems have been suggested to estimate the prognosis mainly based on serum lactate dehydrogenase (LDH) level, age, Karnofsky performance score (KPS), involvement of deep brain structures (DBS) and cerebrospinal fluid protein concentration...
July 18, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28732145/evaluation-of-primary-mediastinal-large-b-cell-lymphoma-by-flow-cytometry
#7
Sindhu Cherian, Jonathan R Fromm
BACKGROUND: Primary mediastinal large B cell lymphoma (PMLBCL) is a B cell non-Hodgkin lymphoma (B-NHL) that shows morphologic, immunophenotypic, and genetic similarities to classical Hodgkin lymphoma (CHL). We evaluated the neoplastic and reactive infiltrate of PMLBCL by flow cytometry (FC). METHODS: 24 cases of PMLBCL were retrospectively characterized using FC combinations for B-NHL, T-NHL, and CHL. RESULTS: The CHL assay identified the neoplastic population (NP) in all cases, while the B-NHL assay identified the NP in 18 of 24 cases...
July 21, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28731456/upregulation-of-tet-activity-with-ascorbic-acid-induces-epigenetic-modulation-of-lymphoma-cells
#8
N Shenoy, T Bhagat, E Nieves, M Stenson, J Lawson, G S Choudhary, T Habermann, G Nowakowski, R Singh, X Wu, A Verma, T E Witzig
The Ten Eleven Translocation (TET) enzymes have been found to be mutated in both diffuse large B-cell (DLBCL) and peripheral T-cell (PTCL) lymphomas resulting in DNA hypermethylation. Recent studies in embryonal stem cells showed that ascorbic acid (AA) is a cofactor for TET with a binding site at the catalytic domain, and enhances TET activity. We hypothesized that AA could potentially enhance TET activity in lymphoma cells to cause DNA demethylation, reactivate expression of tumor suppressor genes and enhance chemosensitivity...
July 21, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28731140/integrated-analysis-of-genome%C3%A2-wide-gene-expression-and-dna-methylation-microarray-of-diffuse-large-b%C3%A2-cell-lymphoma-with-tet-mutations
#9
Pengfei Liu, Wenhua Jiang, Jinkun Zhao, Huilai Zhang
Diffuse large B-cell lymphoma (DLBCL), the most frequently occurring type of lymphoid malignancy, has been demonstrated to be associated with mutations of Ten‑Eleven Translocation (TET). In order to explore the association between DLBCL and TET mutations, the present study analyzed the gene expression and methylation profiles in human DLBCL biopsy tissues with wildtype and mutated TET2. The microarray dataset GSE37365, containing two subseries: the genome‑wide gene expression dataset GSE37362 and the DNA methylation microarray dataset GSE37363, was downloaded from the Gene Expression Omnibus database...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28729720/comparative-gene-expression-profiling-of-the-large-cell-variant-of-gastrointestinal-marginal-zone-b-cell-lymphoma
#10
Thomas F E Barth, Johann M Kraus, Ludwig Lausser, Lucia Flossbach, Lukas Schulte, Karlheinz Holzmann, Hans A Kestler, Peter Möller
Gastrointestinal (g.i.) large cell lymphoma is currently regarded as diffuse large B-cell lymphoma (DLBCL) despite a more favorable clinical outcome compared to other DLBCL. Cluster analyses on a transcriptome signature of NF-κB target genes of 30 g.i. marginal zone B-cell lymphomas (MZBL; 8 g.i. MZBL, 22 large cell MZBL - among them 9 with coexisting small cell component) and 6 DLBCL (3 activated B-cell like (ABC), 3 germinal center-like (GCB)) reveals a distinct pattern. The distinctiveness of large cell MZBL samples is further confirmed by a cohort of 270 available B-cell lymphoma and B-cell in silico profiles...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728454/quantification-of-marrow-hematogones-following-autologous-stem-cell-transplant-in-adult-patients-with-plasma-cell-myeloma-or-diffuse-large-b-cell-lymphoma-and-correlation-with-outcome
#11
Victor Santiago, Aleksandr Lazaryan, Brian McClune, Robert W McKenna, Elizabeth L Courville
In this retrospective study, we quantified the hematogone (normal B-lineage precursor) population by flow cytometric immunophenotyping in post-transplant bone marrow biopsy specimens from adult patients who received an autologous stem cell transplant for either plasma cell myeloma (n = 57) or diffuse large B-cell lymphoma (n = 73). The majority of patients (80%) had <5% marrow hematogones post-transplant. Extreme (>10%) hematogone percentages were quite rare, seen in only four patients, and were not associated with disease progression...
July 21, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28727717/percutaneous-vertebroplasty-for-primary-non-hodgkin-s-lymphoma-of-the-thoracic-spine-case-report-and-review-of-the-literature
#12
Pu Jia, JinJun Li, Hao Chen, Li Bao, Fei Feng, Hai Tang
Primary non-Hodgkin's lymphoma of the vertebra is rare in the spine of the elderly. The clinical presentation and radiological features are unspecific, which make it more difficult for diagnosis. We report a case of a 79-year-old woman complaining of serious backache without any injury. The magnetic resonance imaging (MRI) showed invasion of the fifth thoracic vertebra with the posterior vertebral body wall defect. There was a high suspicion that the patient had a metastatic tumor of the vertebra. A percutaneous vertebroplasty was performed under fluoroscopic guidance, which was used to treat the osteoporotic vertebral compression fracture, vertebral metastases, verte-bral hemangioma, and multiple myeloma...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28725988/interim-18-f-fgd-pet-ct-may-not-predict-the-outcome-in-primary-central-nervous-system-lymphoma-patients-treated-with-sequential-treatment-with-methotrexate-and-cytarabine
#13
Jae-Cheol Jo, Dok Hyun Yoon, Shin Kim, Kyoungmin Lee, Eun Hee Kang, Jung Sun Park, Jin-Sook Ryu, Jooryung Huh, Chan-Sik Park, Jong Hoon Kim, Sang Wook Lee, Cheolwon Suh
(18)F-fluoro-2-dexoy-D-glucose-positron emission tomography (PET)/computed tomography (CT) is a useful imaging technique for monitoring the treatment response in lymphoma cases. We investigated the value of interim brain PET/CT (I-PET/CT) for monitoring the response to intensive methotrexate-based chemotherapy in primary central nervous system lymphoma (PCNSL) patients with diffuse large B cell lymphoma (DLBCL). Of the 76 PCNSL patients treated with intensive methotrexate and cytarabine chemotherapy between September 2006 and December 2012, 66 patients with DLBCL were included in this study...
July 19, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28725161/ep300-single-nucleotide-polymorphism-rs20551-correlates-with-prolonged-overall-survival-in-diffuse-large-b-cell-lymphoma-patients-treated-with-r-chop
#14
Jiao Li, Ning Ding, Xiaogan Wang, Lan Mi, Lingyan Ping, Xuan Jin, Yalu Liu, Zhitao Ying, Yan Xie, Weiping Liu, Yuqin Song, Jun Zhu
BACKGROUND: Rituximab combined with cyclophosphamide, doxorubicin, vincristine and prednisone (CHOP) is used as standard frontline regimen for diffuse large B-cell lymphoma (DLBCL). The landscape of somatic mutations in DLBCL revealed that inactivation of EP300 plays an important role in lymphomagenesis. A common EP300 single nucleotide polymorphism (SNP) rs20551 results in the substitution of valine for isoleucine at codon 997 close to the Bromodomain. However, the association between SNP rs20551 and clinical prognosis in DLBCL patients treated with R-CHOP is unknown...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28724765/translesion-polymerase-pol-%C3%AE-is-required-for-efficient-epstein-barr-virus-infectivity-and-is-regulated-by-the-viral-deubiquitinating-enzyme-bplf1
#15
Ossie F Dyson, Joseph S Pagano, Christopher B Whitehurst
Epstein-Barr Virus (EBV) infection and lytic replication are known to induce a cellular DNA damage response. Previously we showed that the virally encoded BPLF1 protein interacts with and regulates several members of the translesion synthesis pathway (TLS), a DNA damage tolerance pathway, and that these cellular factors enhance viral infectivity. BPLF1 is a late lytic cycle gene, but the protein is also packaged in the viral tegument indicating that BPLF1 may function both early and late during infection. BPLF1 expresses deubiquitinating activity that is strictly conserved across the Herpesviridae; mutation of the active-site cysteine results in loss of enzymatic activity...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28720380/-comprehensive-geriatric-assessment-and-intervention-proposal-in-a-patient-with-a-diffuse-large-b-cell-lymphoma
#16
Carolina Palicio Martínez
No abstract text is available yet for this article.
July 15, 2017: Revista Española de Geriatría y Gerontología
https://www.readbyqxmd.com/read/28719443/18f-fdg-pet-ct-scan-can-predate-clinical-presentation-in-acute-appendicitis
#17
Syed Zama Ali, Loi Hoi Yin, Khor Lih Kin, Arvind Kumar Sinha, Li Mei Poon
Acute appendicitis is a clinical diagnosis typically presenting with right lower quadrant pain. We describe the case of an asymptomatic 53-year-old man with stage 2A diffuse large B-cell lymphoma, who underwent F-FDG PET/CT at the completion of chemotherapy. The scan showed complete lymphomatous disease remission. Incidentally, there was increased FDG uptake in a tubular structure adjacent to the cecum. Clinical examination was negative. Subsequently, the patient presented 6 days later with typical acute appendicitis symptoms...
July 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28719025/frequency-risk-factors-and-outcomes-of-central-nervous-system-relapse-in-lymphoma-patients-treated-with-dose-adjusted-epoch-plus-rituximab
#18
M K Malecek, A M Petrich, S Rozell, B Chu, S Trifilio, N Galanina, M Maurer, U Farooq, B Link, G S Nowakowski, C Nabhan, A O Ayed
Background Central nervous system (CNS) relapse in non-Hodgkin lymphoma (NHL) is a rare but serious complication that carries a poor prognosis. The use of infusional etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin, and rituximab (EPOCH-R) for frontline treatment of diffuse large B cell lymphoma (DLBCL) is increasing, though little is known about incidence of and risk factors for CNS relapse with this regimen Patients and methods We completed a chart review of patients with NHL who received EPOCH-R as front line therapy...
July 18, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28718689/orbital-diffuse-large-b-cell-lymphoma-with-combined-variable-immunodeficiency
#19
Vishal S Parikh, Deepa Jagadeesh, James M Fernandez, Eric D Hsi, Arun D Singh
Common variable immunodeficiency (CVID) is a primary immunodeficiency manifesting as a reduction in the level of total immunoglobulin (Ig) G, a reduction in the level of either IgA or IgM, poor response to polysaccharide vaccine, and usually frequent infections. The association of CVID with an increased risk of malignancy, specifically lymphoma, is well known. A 63-year-old female with a past medical history significant for CVID presented with a 1-month history of dull, left eye pain with proptosis, hypoglobus, and left upper lid fullness without a discrete palpable mass...
July 18, 2017: Orbit
https://www.readbyqxmd.com/read/28717763/burkitt-s-lymphoma-and-b-cell-lymphoma-unclassifiable-with-features-intermediate-between-diffuse-large-b-cell-lymphoma-and-burkitt-s-lymphoma-in-patients-with-hiv-outcomes-in-a-south-african-public-hospital
#20
Gerhard Sissolak, Matthew Seftel, Thomas S Uldrick, Tonya M Esterhuizen, Nooroudien Mohamed, Danie Kotze
PURPOSE: Burkitt's lymphoma (BL) is a common HIV-associated lymphoma in South Africa. B-cell lymphoma unclassifiable with features intermediate between diffuse large B-cell lymphoma and Burkitt's lymphoma (BL/DLBCL) also occurs in HIV infection. Outcomes of HIV-infected patients with BL or BL/DLBCL in a resource-constrained setting are not defined. METHODS: We performed a retrospective study of HIV-positive patients with BL or BL/DLBCL treated from 2004 to 2012 with curative intent at a publically funded academic medical center in South Africa...
June 2017: Journal of Global Oncology
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