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https://www.readbyqxmd.com/read/27910030/recurrent-cytogenetic-abnormalities-in-non-hodgkin-s-lymphoma-and-chronic-lymphocytic-leukemia
#1
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/27905140/herpes-simplex-infection-simulating-richter-transformation-a-series-of-four-cases-and-review-of-the-literature
#2
Alireza Salem, Sanam Loghavi, Joseph D Khoury, Rose Lou Marie C Agbay, Jeffrey L Jorgensen, Jeffrey L Medeiros
AIMS: Richter transformation (RT) occurs in 5-10% of patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and is associated with a poor outcome. Histologic manifestations of RT are variable and include an increase in the proportion of large cells including prolymphocytes, immunoblasts and other pleomorphic cells along with an increased proliferation rate and often necrosis. Rarely, superimposed Herpes simplex virus (HSV) infection involving lymph nodes in patients with CLL/SLL may mimic RT clinically and histologically...
December 1, 2016: Histopathology
https://www.readbyqxmd.com/read/27903986/adult-t-cell-leukemia-aggressivenness-correlates-with-loss-of-both-5-hydroxymethylcytosine-and-tet2-expression
#3
Ambroise Marçais, Laetitia Waast, Julie Bruneau, Katia Hanssens, Vahid Asnafi, Philippe Gaulard, Felipe Suarez, Patrice Dubreuil, Antoine Gessain, Olivier Hermine, Claudine Pique
Mutations in TET2, encoding one of the TET members responsible for the conversion of DNA cytosine methylation to hydroxymethylation (5-hmc), have been recently described in Human T-lymphotropic virus type 1-associated adult T-cell leukemia/lymphoma (ATLL). However, neither the amount of genomic 5-hmc in ATLL tumor cells nor TET2 expression has been studied yet. In this study, we analyzed these two parameters as well as the mutational status of TET2 in ATLL patients. By employing a direct in situ approach, we documented that tumor T cells infiltrating lymph nodes exhibit low level of 5-hmc compared to residual normal T cells...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27824644/rapid-fatal-acute-peripheral-t-cell-lymphoma-associated-with-igg-plasma-cell-leukemia-and-iga-hypergammaglobulinemia
#4
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/27806839/proliferation-centers-in-bone-marrows-involved-by-chronic-lymphocytic-leukemia-small-lymphocytic-lymphoma-a-clinicopathologic-analysis
#5
Jason C Chang, Alexandra M Harrington, Horatiu Olteanu, Peter VanTuinen, Steven H Kroft
OBJECTIVES: Proliferation centers (PCs) are a characteristic finding in chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) lymph nodes, and their presence and extent in this site are not currently felt to be related to clinical course. In contrast, detailed clinicopathologic analyses of bone marrow (BM) PCs have not been previously reported. METHODS: The PCs in 88 CLL/SLL BMs from 45 patients (pts) were graded (0-4) and were correlated with other morphologic, immunophenotypic, cytogenetic, and laboratory features...
December 2016: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/27805558/-granulocytic-sarcoma-two-cases-with-lymph-node-presentation
#6
Maria Paula Russo, Diego Andresik, M Agustina Perusini
Two cases of granulocytic sarcoma (GS) with lymph node presentation without marrow involvement are presented because it is a rare presentation of acute myeloid leukemia (AML) that can coexist with or precede it and as initial symptom (case 1) or disease relapse (case 2). The most common differential diagnoses are lymphoma or solid tumor. Biopsy is essential for definitive diagnosis. Imaging studies such as positron emission tomography (PET) are very useful for staging and monitoring. The prognosis and treatment according to the literature is not different from AML...
2016: Revista de la Facultad de Ciencias Médicas
https://www.readbyqxmd.com/read/27801729/richter-syndrome-with-plasmablastic-lymphoma-at-primary-diagnosis-a-case-report-with-a-review-of-the-literature
#7
Andrea Ronchi, Laura Marra, Ferdinando Frigeri, Gerardo Botti, Renato Franco, Annarosaria De Chiara
Richter syndrome (RS) is considered as the rare development of an aggressive lymphoid malignancy in a preexisting small lymphocytic lymphoma/chronic lymphocytic leukemia. The most common aggressive lymphoma developing in this setting is diffuse large B-cell lymphoma, but classical Hodgkin lymphoma and other much rarer entities such as prolymphocytic lymphoma and dendritic cell sarcoma are also described, most frequently in the progression of the disease over time. A clonal relation between the 2 neoplastic proliferations can be frequently found, whereas clonally unrelated cases are commonly considered as independent tumors, probably due to a variable combination of multiple causes, responsible independently for the 2 neoplasms...
October 31, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27799525/expression-of-hiv-1-matrix-protein-p17-and-association-with-b-cell-lymphoma-in-hiv-1-transgenic-mice
#8
Virginia A Carroll, Mark K Lafferty, Luigi Marchionni, Joseph L Bryant, Robert C Gallo, Alfredo Garzino-Demo
HIV-1 infection is associated with increased risk for B-cell lymphomas. How HIV infection promotes the development of lymphoma is unclear, but it may involve chronic B-cell activation, inflammation, and/or impaired immunity, possibly leading to a loss of control of oncogenic viruses and reduced tumor immunosurveillance. We hypothesized that HIV structural proteins may contribute to lymphomagenesis directly, because they can persist long term in lymph nodes in the absence of viral replication. The HIV-1 transgenic mouse Tg26 carries a noninfectious HIV-1 provirus lacking part of the gag-pol region, thus constituting a model for studying the effects of viral products in pathogenesis...
November 15, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27789281/prolonged-lymphocytosis-as-the-first-manifestation-of-hodgkin-like-adult-t-cell-leukemia-lymphoma
#9
Achiléa L Bittencourt, Agnes Carvalho Andrade, Cristiane Requião, Maria da Gloria Bomfim Arruda, Iguaracyra Araújo
Hodgkin-like ATLL is a rare variant of adult T-cell leukemia/lymphoma (ATLL), a disease caused by human T-cell lymphotropic virus type-1 (HTLV-1). At admission, a 46-year-old female presented with lymphadenomegaly, lymphocytosis, slight elevation of LDH blood level, and acid-alcohol resistant bacilli in sputum and was being treated for pulmonary tuberculosis (Tb). She had lymphocytosis in the previous 20 months. Serology for HTLV-1 was positive. Lymph node was infiltrated by medium-sized lymphocytes with scattered Hodgkin and Reed-Sternberg-like cells CD30+, CS1-4+, and CD79a+...
October 24, 2016: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27765074/multicentric-lymphoma-in-buffaloes-in-the-amazon-region-brazil
#10
Cairo H S De Oliveira, José D Barbosa, Karine A Damasceno, Geovanni D Cassali, Carlos Mc Oliveira, Rômulo C Leite, Jenner K P Reis
BACKGROUND: The presence of lymphoma in buffaloes was first reported in India in the 1960s. The disease is similar to Enzootic Bovine Leucosis (EBL) caused by Bovine leukemia virus (BLV) in cattle; however, according to our results and those of other studies, the etiology of these lymphomas in buffalo do not appear to be associated with BLV. The objectives of this study are to describe four cases of the disease in buffaloes belonging to the same herd in the Amazon region of Brazil and to perform a clinical-anatomopathological, immunohistochemical, and etiological study of the lymphomas...
October 20, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27630351/lymphoma-of-the-cervix-case-report-and-review-of-the-literature
#11
Ziad Hilal, Franziska Hartmann, Askin Dogan, Cem Cetin, Harald Krentel, Sven Schiermeier, Beate Schultheis, Clemens B Tempfer
BACKGROUND: Lymphoma of the uterine cervix (LUCX) is rare and may occur as a primary or secondary manifestation of this disease. Clinical and cytological presentations of LUCX vary and establishing diagnosis is often difficult. Surgery followed by radiation or chemotherapy is the mainstay of treatment. CASE REPORT: We present the case of a 73-year-old woman with recurrent pathological PAP smears of the cervix and a history of chronic lymphatic leukemia 15 years ago...
September 2016: Anticancer Research
https://www.readbyqxmd.com/read/27569099/8p11-myeloproliferative-syndrome-diagnostic-challenges-and-pitfalls
#12
Darko A Antic, Vojin M Vukovic, Jelena D Milosevic Feenstra, Robert Kralovics, Andrija D Bogdanovic, Marija S Dencic Fekete, Biljana S Mihaljevic
8p11 myeloproliferative syndrome (EMS) is a very rare clinicopathological entity which is characterized by the appearance of a myeloproliferative neoplasm in the bone marrow, peripheral lymphadenopathy, usually caused by T or B lymphoblastic lymphoma/leukemia, and a reciprocal translocation involving chromosome 8p11. Herein we describe a 22-year-old male patient with unusual clinical presentation of EMS. Namely, he initially presented with prolonged epistaxis. Complete blood count showed elevated hemoglobin (17...
May 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/27514846/functional-and-clinical-significance-of-the-integrin-alpha-chain-cd49d-expression-in-chronic-lymphocytic-leukemia
#13
Michele Dal Bo, Erika Tissino, Dania Benedetti, Chiara Caldana, Riccardo Bomben, Giovanni Del Poeta, Gianluca Gaidano, Francesca Maria Rossi, Pietro Bulian, Antonella Zucchetto, Valter Gattei
Chronic lymphocytic leukemia (CLL) is a clinically heterogeneous disease characterized by the accumulation/expansion of a clonal population of neoplastic cells with the morphological appearance of small mature B lymphocytes in blood, bone marrow, and lymphoid organs. CD49d, the α chain of the α4β1 integrin heterodimer, is one of the main interactors between CLL cells and accessory cells in the microenvironmental sites and one of the main predictors of overall survival. In particular, CD49d is known to play a pivotal role in mediating both cell-cell and cell-matrix interactions in CLL-involved tissues eventually delivering prosurvival signals and protecting CLL cells from drug-induced damages...
August 9, 2016: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/27512341/concomitant-classic-hodgkin-lymphoma-of-lymph-node-and-cmyc-positive-burkitt-leukemia-lymphoma-of-the-bone-marrow-presented-concurrently-at-the-time-of-presentation-a-rare-combination-of-discordant-lymphomas
#14
Dina S Soliman, Shehab Fareed, Einas Alkuwari, Halima El-Omri, Ahmad Al-Sabbagh, Amna Gameel, Mohamed Yassin
Discordant lymphoma is rare condition in which different types of malignant lymphomas occurring in different anatomic sites. The two diseases may present clinically as concurrent or sequential disease (10). Herein we are reporting a Pakistani female in her 60s, a carrier of hepatitis B virus with multiple comorbidities presented with cervical lymphadenopathy, diagnosed as Hodgkin's lymphoma, mixed cellularity. During the staging workup, the patient was discovered to have extensive bone marrow (BM) involvement by Burkitt leukaemia/lymphoma (BL)...
2016: Clinical Medicine Insights. Blood Disorders
https://www.readbyqxmd.com/read/27493231/restoration-of-microrna-212-causes-a-g0-g1-cell-cycle-arrest-and-apoptosis-in-adult-t-cell-leukemia-lymphoma-cells-by-repressing-ccnd3-expression
#15
Haihao Wang, Qiannan Guo, Peiwen Yang, Guoxian Long
Adult T-cell leukemia/lymphoma (ATL) is a highly aggressive T-cell malignancy. This study was designed to explore the expression and functional significance of microRNA (miR)-212 in ATL. The expression of miR-212 in human ATL tissues and cell lines were investigated. Gain-of-function experiments were carried out to determine the roles of miR-212 in cell proliferation, tumorigenesis, cell cycle progression, and apoptosis. We also identified and functionally characterized the target genes of miR-212 in ATL cells...
August 4, 2016: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/27456462/clinical-features-and-treatment-outcome-of-epstein-barr-virus-positive-nodal-t-cell-lymphoma
#16
Ki Sun Jung, Su-Hee Cho, Seok Jin Kim, Young Hyeh Ko, Won Seog Kim
The classification of mature NK-/T-cell lymphoma mainly originating from the T-cell lineage with predominantly nodal involvement and Epstein-Barr virus (EBV) positivity in a majority of tumor cells is unresolved. We analyzed the clinical features and treatment outcomes of such patients. Five patients with EBV-positive nodal T-cell lymphoma were surveyed during follow-up period. The median age was 53 years (range 33-88 years), and all patients showed nodal involvement. The patients mostly presented advanced clinical features, such as stage III or IV disease, elevated lactate dehydrogenase, and hemophagocytosis...
July 25, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27391589/ethanol-extracted-brazilian-propolis-exerts-protective-effects-on-tumorigenesis-in-wistar-hannover-rats
#17
Anna Kakehashi, Naomi Ishii, Masaki Fujioka, Kenichiro Doi, Min Gi, Hideki Wanibuchi
The present study was conducted over a course of 104 weeks to estimate the carcinogenicity of ethanol-extracted Brazilian green propolis (EEP). Groups of 50 male and 50 female Wistar Hannover rats, 6-week-old at commencement were exposed to EEP at doses of 0, 0.5 or 2.5% in the diet. Survival rates of 0.5% and 2.5% EEP-treated male and female rats, respectively, were significantly higher than those of respective control groups. Overall histopathological evaluation of neoplasms in rat tissues after 2 years showed no significant increase of tumors or preneoplastic lesions in any organ of animals administered EEP...
2016: PloS One
https://www.readbyqxmd.com/read/27320120/-therapy-related-acute-myeloid-leukemia-following-etoposide-based-chemotherapy-in-germ-cell-tumor
#18
Yoshinaga Okumura, Masashi Oae, Yusuke Shiraishi, Takeshi Soda, Hiroshi Kanamaru, Nobuyoshi Arima
A 27-year-old man visited our hospital with painless swelling of the left scrotum. Hematologic studies showed the following levels of lactate dehydrogenase, 3,171 IU/l ; alpha-fetoprotein, 2.2 ng/ml ; and β- human chorionic gonadotropin, 0.4 ng/ml, and abdominal computed tomography revealed a mass of 10×8 ×4 cm in the left testis, and that of 3.5×3.0×5.0 cm in the left renal hilar lymph node, without any other metastasis. Left high inguinal orchiectomy was performed, and histopathological examination revealed mixed form with seminoma and teratoma...
May 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/27250049/clinical-impact-of-a-humanized-ccr4-antibody-mogamulizumab-in-14-patients-with-aggressive-adult-t-cell-leukemia-lymphoma-treated-at-a-single-institution-during-a-three-year-period-2012-2014
#19
Noriaki Kawano, Takuro Kuriyama, Koh-Hei Sonoda, Shuro Yoshida, Kiyoshi Yamashita, Hidenobu Ochiai, Kazuya Shimoda, Fumihiko Ishikawa, Akira Ueda, Ikuo Kikuchi
Objective We elucidated the effectiveness of a humanized CCR4 antibody (mogamulizumab) on adult T-cell leukemia-lymphoma (ATL), which typically has a poor outcome. Methods We retrospectively analyzed 14 patients with aggressive ATL who had been treated at our institution with weekly cycles of mogamulizumab for eight weeks from 2012-2014. Results The patients (median age: 63 years old) were classified as having acute- (n=10) or lymphoma-type (n=4) ATL. The prior treatment regimens consisted of CHOP, VCAP-AMP-VECP, DeVIC and CHASE, with an average of two courses (range: 1-4)...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27247366/an-immunohistochemical-survey-of-snare-proteins-shows-distinct-patterns-of-expression-in-hematolymphoid-neoplasia
#20
Rekha Bhat, Pritish K Bhattacharyya, Howard Ratech
OBJECTIVES: Five proteins from the soluble N-ethylmaleimide-sensitive factor activating protein receptor (SNARE) complex family were studied in normal hematopoietic cells in bone marrow; normal lymphocytes at different stages of maturation and differentiation in bone marrow, thymus, tonsil, and lymph node; malignant lymphomas; and leukemias. METHODS: Sixty-eight reactive and 380 hematopoietic and lymphoid neoplasms were immunohistochemically stained for syntaxin 7 (STX7), vesicle-associated membrane proteins (VAMP2, VAMP7, VAMP8), and synaptosomal-associated protein 23 (SNAP23)...
May 2016: American Journal of Clinical Pathology
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