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https://www.readbyqxmd.com/read/28922443/primary-hepatic-lymphoma-complicated-by-a-hepatic-inflammatory-pseudotumor-and-tumor-forming-pancreatitis
#1
Rena Kaneko, Hiroyuki Mitomi, Natsuko Nakazaki, Yuichiro Yano, Masazumi Ogawa, Yuzuru Sato
BACKGROUND: Hepatic inflammatory pseudotumor (IPT) is considered to be benign in biological behavior, and its malignant transformation is extremely rare. There has only been one published case of primary hepatic lymphoma complicated by hepatic IPT. CASE PRESENTATION: A 73-year-old man presented with obstructive jaundice and a pancreatic head mass. Histology of the mass revealed chronic pancreatitis with lymphoid follicle formation, leading to a diagnosis of a suspicion of follicular pancreatitis...
September 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28921160/gp2013-a-rituximab-biosimilar
#2
Hannah A Blair
GP2013 is the second biosimilar of the reference monoclonal anti-CD20 antibody rituximab to be approved in the EU. It is approved for use in all indications for which reference rituximab is approved, including follicular lymphoma (FL), diffuse large B-cell non-Hodgkin's lymphoma, chronic lymphocytic leukaemia, rheumatoid arthritis (RA), granulomatosis with polyangiitis and microscopic polyangiitis. GP2013 has similar physicochemical and pharmacodynamic properties to those of reference rituximab, and the pharmacokinetic biosimilarity of the agents has been shown in patients with RA...
September 18, 2017: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
https://www.readbyqxmd.com/read/28918104/peripheral-blood-lymphocyte-to-monocyte-ratio-at-relapse-predicts-outcome-for-patients-with-relapsed-or-refractory-diffuse-large-b-cell-lymphoma-in-the-rituximab-era
#3
Daisuke Katoh, Yotaro Ochi, Tomohiro Yabushita, Yuichiro Ono, Nobuhiro Hiramoto, Satoshi Yoshioka, Noboru Yonetani, Akiko Matsushita, Hisako Hashimoto, Shuichiro Kaji, Yukihiro Imai, Takayuki Ishikawa
BACKGROUND: Patients with relapsed/refractory diffuse large B-cell lymphoma (DLBCL) have a poor prognosis, even in the rituximab era. Several studies have reported the clinical importance of the peripheral blood lymphocyte-to-monocyte ratio (LMR) in various malignancies, including lymphoma. However, the prognostic value of the LMR in relapsed/refractory DLBCL has not been well evaluated. The purpose of the present study was to investigate whether the LMR at relapse can predict clinical outcomes for relapsed/refractory DLBCL patients treated with rituximab...
August 14, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28915427/breast-lymphoma-in-a-patient-with-b-cell-non-hodgkin-lymphoma-a-case-report-study
#4
Spyridon Marinopoulos, Panagiotis Safioleas, Lamprini Skorda, Eleni Vassilopoulou, Flora Zagouri, Maria Sotiropoulou, Peter Drakakis, Constantine Dimitrakakis
INTRODUCTION: Breast involvement in Non Hodgkin Lymphoma is a rare entity as it accounts for 2.2% of all extranodal lymphomas. PRESENTATION OF CASE: A 59-year-old woman was referred to our Breast Unit because of two nodules of the right breast newly discovered during her annual mammography. Moreover, during the physical examination, a red-brown itchy lump of the scalp was discovered. The punch biopsies of the scalp lesion and ultrasound-guided core biopsies of both nodules of the right breast, revealed the presence of diffuse large B-cell Non Hodgkin Lymphoma in all tissue specimen sites...
September 7, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28913874/an-algorithmic-approach-to-diagnose-haematolymphoid-neoplasms-in-effusion-by-combining-morphology-immunohistochemistry-and-molecular-cytogenetics
#5
L Chen, J S Zhang, D G Liu, D Cui, Z L Meng
OBJECTIVE: There are limited studies of cytology diagnosis of haematopoietic and lymphoid tumours in serosal effusion except for occasional case reports. We would like to demonstrate an algorithmic approach for accurate diagnosis, especially in patients without previous history. METHODS: We reviewed 36 cases of lymphoma diagnosed in serosal effusion following an algorithmic approach. Suspected tumour cells were classified into small, intermediate and large sizes and two characteristic forms of plasmacytoid and Reed Sternberg-like on smears (step 1), followed by utilising panels of immunohistochemical markers and Epstein-Barr encoding region in situ hybridisation on cell blocks (step 2)...
September 15, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28912427/dna-methylation-profiling-reveals-common-signatures-of-tumorigenesis-and-defines-epigenetic-prognostic-subtypes-of-canine-diffuse-large-b-cell-lymphoma
#6
Serena Ferraresso, Arianna Aricò, Tiziana Sanavia, Silvia Da Ros, Massimo Milan, Luciano Cascione, Stefano Comazzi, Valeria Martini, Mery Giantin, Barbara Di Camillo, Sandro Mazzariol, Diana Giannuzzi, Laura Marconato, Luca Aresu
Epigenetic deregulation is a hallmark of cancer characterized by frequent acquisition of new DNA methylation in CpG islands. To gain insight into the methylation changes of canine DLBCL, we investigated the DNA methylome in primary DLBCLs in comparison with control lymph nodes by genome-wide CpG microarray. We identified 1,194 target loci showing different methylation levels in tumors compared with controls. The hypermethylated CpG loci included promoter, 5'-UTRs, upstream and exonic regions. Interestingly, targets of polycomb repressive complex in stem cells were mostly affected suggesting that DLBCL shares a stem cell-like epigenetic pattern...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28910872/-pathologic-subtyping-of-primary-lymphoma-of-breast-and-prognostic-analysis
#7
Z J Zhou, J L Xie, P Wei, X G Zhou
Objective: To investigate the pathological types and prognostic factors of primary lymphoma of breast (PLB). Methods: The clinical pathological data of 115 cases of PLB during October 2006 to October 2016 were retrospectively analyzed, and the basic clinical and pathological data, pathology types and the immunohistochemical slides by EliVision two-step method for staining were summarized. Results: Almost all the patients were women (113/115), and the median age was 52 years old (range: 27 to 81 years old). The main symptom was painless progressive mass in breast...
September 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28910870/-primary-mediastinal-large-b-cell-lymphoma-a-clinicopathologic-study-of-27-cases
#8
Q Y Shi, X Feng, H Chen, H H Ma, Z F Lu, Q L Shi, X J Zhou, Q Shen
Objective: To study the clinicopathologic characteristics and diagnostic criteria of primary mediastinal B-cell lymphoma (PMBL), and to distinguish PMBL from classic Hodgkin lymphoma(CHL) and systemic diffuse large B-cell lymphoma(DLBCL). Methods: The clinical features, histologic findings, results of immunohistochemical study and prgnosis in 27 PMBL cases were analyzed, with review of literature. Results: The age of patients ranged from 19 to 82 years (median age 34 years). All cases were located in the mediastinum and frequently accompanied by superior vein cava syndrome...
September 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28902958/nonregenerative-immune-mediated-anemia-associated-with-a-diffuse-large-b-cell-lymphoma-in-a-captive-jaguar-panthera-onca
#9
Monika A Keresztes, Manfred Henrich, Penelope Baloi, Sascha Gerst, Jens-Christian Rudnick, Judith Langenstein, Andreas Moritz, Natali Bauer
An 18-year-old male castrated jaguar (Panthera onca) was presented with anorexia and continuous bleeding from the oral cavity after a history of fighting with the partner animal. Clinical evaluation revealed ulcerating lesions on the gingiva and hard palate and a hematoma on the tongue. Computed tomography of the head and endoscopic examination of the esophagus and stomach were unremarkable. Hematology and clinical chemistry revealed severe nonregenerative anemia, mild thrombocytopenia, and moderate azotemia...
September 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28900344/primary-diffuse-large-b-cell-lymphoma-of-the-breast-a-rare-case-and-review-of-literature
#10
Dhruv Pankaj Mehta, Pushpak Chirmade, Asha S Anand, Sonia Parikh
No abstract text is available yet for this article.
April 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28900238/limitations-of-qdot-labelling-compared-to-directly-conjugated-probes-for-single-particle-tracking-of-b-cell-receptor-mobility
#11
Libin Abraham, Henry Y Lu, Rebeca Cardim Falcão, Joshua Scurll, Timothy Jou, Brian Irwin, Reza Tafteh, Michael R Gold, Daniel Coombs
Single-particle tracking (SPT) is a powerful method for exploring single-molecule dynamics in living cells with nanoscale spatiotemporal resolution. Photostability and bright fluorescence make quantum dots (Qdots) a popular choice for SPT. However, their large size could potentially alter the mobility of the molecule of interest. To test this, we labelled B cell receptors on the surface of B-lymphocytes with monovalent Fab fragments of antibodies that were either linked to Qdots via streptavidin or directly conjugated to the small organic fluorophore Cy3...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28898343/-differential-diagnosis-of-bone-marrow-and-lung-granulomas-report-of-one-case
#12
Camila Peña, Andrés Soto, Pablo Villegas
The differential diagnosis of pulmonary tuberculosis and lymphoma with pulmonary infiltration is very difficult, given their similar clinical characteristics. We report a 59 year old female with weight loss, fever, dyspnea and cough of several months of duration. She had a cavitated mass in lung imaging. A positive conventional PCR lead to the diagnosis of tuberculosis, but she had negative smears and cultures for Mycobacterium tuberculosis. The patient did not respond to treatment and her clinical condition worsened...
May 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28895406/identification-of-potential-key-genes-associated-with-diffuse-large-b-cell-lymphoma-based-on-microarray-gene-expression-profiling
#13
X Luo, F Shi, H Qiu, Y Tong, X Gao
The study aimed to screen potential key genes, and their targeted miRNAs and transcription factors (TFs) that were related to diffuse large B-cell lymphoma (DLBCL), and explore potential therapeutic targets for the progression of DLBCL. Dataset GSE56315 extracted from human tonsils was downloaded from Gene Expression Omnibus. Limma package was used to identify differential expression genes (DEG) between DLBCL and normal human tonsils samples, and the function and pathway enrichment analyses were performed. Then, functional interaction (FI) networks analyses of DEGs were implemented, and modules were extracted...
September 12, 2017: Neoplasma
https://www.readbyqxmd.com/read/28893618/lenalidomide-modulates-gene-expression-in-human-abc-dlbcl-cells-by-regulating-ikaros-interaction-with-an-intronic-control-region-of-spib
#14
Lauren A Solomon, Carolina R Batista, Rodney P DeKoter
Activated B cell diffuse large B cell lymphoma (ABC-DLBCL) has poor prognosis compared to other DLBCL types, and therefore represents a top priority for developing novel therapies. Lenalidomide, an immunomodulatory drug in trials for treatment of ABC-DLBCL, targets the transcription factor IKAROS for degradation by the Cereblon E3 ubiquitin ligase complex. In this study, we determined whether the gene encoding the transcription factor SPI-B is a target of IKAROS. Using cultured ABC-DLBCL cell lines, we found that high levels of SPI-B expression conferred resistance to lenalidomide...
September 8, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28889716/-a-case-of-primary-sigmoid-colon-lymphoma-presenting-with-sigmoidovesical-fistula-in-a-patient-with-a-long-history-of-ulcerative-colitis
#15
Kosuke Ogawa, Yosuke Shimizu, Kazunari Tsuchihashi, Kazutaka Kida, Sojun Kanamaru, Yasuhiro Tanaka, Misa Ishihara, Kimio Hashimoto, Noriyuki Ito
A 73-year-old male patient with a 16-year history of ulcerative colitis presented to our hospital with a history of pneumaturia and fever. Cystoscopy and a computed tomography scan showed sigmoidovesical fistula. Colonoscopy showed a necrotic tumor along with sigmoidovesical fistula. A biopsy was not sufficient to make a definitive diagnosis of the tumor. Total colectomy with ileostomy and partial cystectomy were performed. A pathological examination showed diffuse large B-cell lymphoma of the sigmoid colon...
August 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28884033/high-grade-b-cell-neoplasm-with-surface-light-chain-restriction-and-tdt-coexpression-evolved-in-a-myc-rearranged-diffuse-large-b-cell-lymphoma-a-dilemma-in-classification
#16
Dina Sameh Soliman, Ahmad Al-Sabbagh, Feryal Ibrahim, Ruba Y Taha, Zafar Nawaz, Sarah Elkourashy, Abdulrazzaq Haider, Susanna Akiki, Mohamed Yassin
According to World Health Organization (WHO) classification (2008), B-cell neoplasms are classified into precursor B-cell or a mature B-cell phenotype and this classification was also kept in the latest WHO revision (2016). We are reporting a male patient in his fifties, with tonsillar swelling diagnosed as diffuse large B-cell lymphoma (DLBCL), germinal center. He received 6 cycles of RCHOP and showed complete metabolic response. Two months later, he presented with severe CNS symptoms. Flow cytometry on bone marrow (BM) showed infiltration by CD10-positive Kappa-restricted B-cells with loss of CD20 and CD19, and downregulation of CD79b...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28883511/cytotoxic-response-against-epstein-barr-virus-coexists-with-diffuse-large-b-cell-lymphoma-tolerogenic-microenvironment-clinical-features-and-survival-impact
#17
Melina Cohen, Aldana G Vistarop, Fuad Huaman, Marina Narbaitz, Fernanda Metrebian, Elena De Matteo, María V Preciado, Paola A Chabay
Epstein-Barr Virus (EBV) is present in neoplastic cells of 15% of Asian and Latin-American diffuse large B-cell lymphoma (DLBCL) patients. Even though a tolerogenic microenvironment was recently described in DLBCL, little is known concerning immunomodulatory features induced by EBV. As suggested in Hodgkin lymphoma, EBV-specific cytotoxic T-cells are increased but showing immune exhaustion features. Hence, host immunity suppression may play a critical role in tumor progression. This study aimed to investigate, whether an association between tumor microenvironment features and EBV presence is taking place, and its clinical correlate...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28883281/novel-mechanism-of-immune-evasion-in-cancer-via-structural-variations-of-the-pd-l1-gene
#18
Seishi Ogawa
Cancer cells are thought to circumvent immune surveillance through PD-1/PD-L1 signaling. However, the genetic basis for PD-L1-PD-L1-mediated immune escape has not been completely understood, with the exception of elevated PD-L1 expression by gene amplification and the utilization of an ectopic promoter by translocation. Recently, we demonstrated a unique genetic mechanism of immune escape caused by structural variations (SVs) commonly disrupting the 3' part of the PD-L1 gene. These SVs invariably cause a marked elevation of aberrant PD-L1 transcripts that are stabilized by truncation of the 3'-untranslated region (UTR), and thereby widely affect multiple common cancer types, including adult T-cell leukemia/lymphoma (27%), diffuse large B-cell lymphoma (8%), and adenocarcinoma of the stomach (2%)...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28883276/acute-exacerbation-of-organizing-pneumonia-leading-to-sudden-death-in-a-patient-with-sarcoidosis-lymphoma-syndrome
#19
Kazuhide Iizuka, Jun Ando, Azuchi Masuda, Tomonori Ochiai, Ran Tomomasa, Hajime Yasuda, Tomoiku Takaku, Yasunori Ota, Takashi Yao, Akihiko Gotoh, Norio Komatsu
The subject was an 83-year-old female; she had a history of Propionibacterium acnes-related sarcoidosis at the age of 79 years. At diagnosis, she was treated with clarithromycin and achieved remission. Four years later, during a routine physical check-up, she presented with pulmonary opacities and swelling of multiple lymph nodes. A definitive diagnosis of lymphoma could not be made by inguinal lymph node biopsy. The patient's general condition was good, and we observed her clinical course. Oh the 56th day of her illness, she died suddenly...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28883273/regression-of-uterine-cervical-diffuse-large-b-cell-lymphoma-transformed-from-mucosa-associated-lymphoid-tissue-lymphoma-subsequent-to-chlamydia-trachomatis-eradication
#20
Toshitaka Mutoh, Hiroshi Takatsuki, Kiyohito Mannoji, Kyoko Kawamura, Naofumi Okura, Koichi Ohshima
A 37-year-old-woman was referred to our center after her uterine cervix health screening presented abnormal findings. We performed a biopsy of the uterine cervix to examine for cervical dysplasia, and diagnosed a diffuse large B-cell lymphoma transformed from mucosa-associated lymphoid tissue (MALT) lymphoma of the cervix. The patient presented with concurrent chlamydial cervicitis and received eradication therapy for Chlamydia trachomatis. Four months later, the CD20 positive abnormal lymphocyte disappeared and complete remission was achieved...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
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