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Primary b cell lymphoma

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https://www.readbyqxmd.com/read/28937430/cutaneous-richter-syndrome-mimicking-primary-cutaneous-cd4-positive-small-medium-t-cell-lymphoma-case-report-and-review-of-the-literature
#1
Miguel Rito, José Cabeçadas, Joaninha Costa Rosa, Mariana Cravo, Alistair Robson
Richter syndrome represents the transformation of chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma into an aggressive large B-cell lymphoma. Skin involvement is exceptionally rare, with <20 cases reported and its presence as the first presentation of CLL/small lymphocytic lymphoma, as an isolated skin lesion has never been described. Primary cutaneous CD4-positive small/medium T-cell lymphoma (CD4 PCSM-TCL) characteristically presents with a dense dermal infiltrate consisting primarily of small-/medium-sized pleomorphic T-cells and less than 30% large pleomorphic cells...
September 12, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28935843/efficacy-and-safety-of-subcutaneous-and-intravenous-rituximab-plus-cyclophosphamide-doxorubicin-vincristine-and-prednisone-in-first-line-diffuse-large-b-cell-lymphoma-the-randomized-mabease-study
#2
Pieternella Lugtenburg, Irit Avivi, Henriette Berenschot, Osman Ilhan, Jean Pierre Marolleau, Arnon Nagler, Antonio Rueda, Monica Tani, Mehmet Turgut, Stuart Osborne, Rodney Smith, Michael Pfreundschuh
Intravenous rituximab plus chemotherapy is standard treatment for diffuse large B-cell lymphoma. A subcutaneous formulation of rituximab is expected to simplify and shorten drug preparation and administration, and to reduce treatment burden. MabEase (NCT01649856) examined efficacy, safety and patient satisfaction with subcutaneous rituximab plus chemotherapy in treatment-naïve patients with diffuse large B-cell lymphoma. Patients were randomized 2:1 to subcutaneous rituximab (intravenous 375 mg/m(2) cycle 1; subcutaneous 1,400 mg cycles 2-8) or intravenous rituximab (375 mg/m(2) cycles 1-8) plus cyclophosphamide, doxorubicin, vincristine, and prednisone every 14 or 21 days...
September 21, 2017: Haematologica
https://www.readbyqxmd.com/read/28935521/a-study-of-the-dosimetric-characteristics-between-different-fixed-field-imrt-and-vmat-in-early-stage-primary-mediastinal-b-cell-lymphoma
#3
Li-Ming Xu, Ming-Lei Kang, Bo Jiang, Qing-Feng Liu, Ye-Xiong Li
This analysis was designed to compare dosimetric parameters among different fixed-field intensity-modulated radiation therapy (IMRT) solutions and volumetric-modulated arc therapy (VMAT) to identify which can achieve the lowest risk of organs at risk (OARs) and treatment delivery efficiently. A total of 16 patients (8 male and 8 female) with early-stage primary mediastinal large B-cell lymphoma (PMBCL) were enrolled with planned gross tumor volume (PGTV) 45 Gy and planning target volume (PTV) 40 Gy. Four different plans were generated: 5-, 7, 9-field IMRT, and VMAT...
September 18, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28932613/primary-pulmonary-lymphoma-presenting-with-superior-vena-cava-syndrome-in-a-young-female
#4
Divya Salhan, Prakash Verma, Tun Win Naing, Ebad Ur Rehman, Saroj Kandel, Danillo Enriquez, Joseph Quist, Frances Schmidt
Primary Pulmonary Diffuse Large B Cell Lymphoma (PPDLBCL) is an extremely rare entity, which exhibits an aggressive behavior by compressing local blood vessels. It represents only 0.04% of all lymphoma cases and is extremely rare in young age. We present a case of a primary pulmonary lymphoma with superior vena cava syndrome (SVCS) in a young female. 27-year-old African American female presented with fever, cough, and facial puffiness for 2 weeks and unintentional weight loss. Chest examination showed decreased breath sounds and dullness on percussion on right side...
2017: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/28926365/primary-cutaneous-diffuse-large-b-cell-lymphoma-leg-type-with-spontaneous-regression-after-biopsy
#5
Gabriel Marrero-Alemán, Társila Montenegro-Dámaso, Yeray Peñate
Primary cutaneous diffuse large B-cell lymphoma, leg type (PCDLBCL-LT) represents approximately 20% of cutaneous B lymphomas with an intermediate prognosis. Spontaneous regression is uncommon; there are only 2 published cases. An 83-year-old woman presented 2 orange erythematous nodules on the back of her right leg with an elastic consistency, infiltrated, painful to the touch, and of an 8-month evolution. A histological examination revealed a dense cellular dermo-hypodermic infiltrate sparing the papillary dermis, composed of large cells with immunoblast and centroblast morphology and frequent mitosis...
October 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28924466/primary-cutaneous-cd4-positive-small-medium-sized-pleomorphic-t-cell-lymphoma-following-heart-transplantation
#6
B Shakerian, N Razavi, M H Mandegar
Post-transplantation cutaneous lymphoproliferative diseases (PTCLD) are rare, with 29 cases have so far been reported in the literature-only 4 cases underwent cardiac transplantation. Herein, we report on, to the best of our knowledge, the first case in the English literature of primary cutaneous CD4-positive small/medium-sized pleomorphic T-cell lymphoma in a cardiac transplant recipient.
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28924126/development-of-epstein-barr-virus-related-primary-diffuse-large-b-cell-lymphoma-of-the-central-nervous-system-in-a-patient-with-peripheral-t-cell-lymphoma-not-otherwise-specified-after-mogamulizumab-treatment
#7
Hiroaki Tanaka, Hanako Aoki, Yasumasa Sugita, Ryo Shimizu, Katsunari Kiko, Hidetoshi Mochida, Yoshio Suzuki
Mogamulizumab is a defucosylated humanized anti-CC chemokine receptor type 4 (CCR4) antibody that exerts an anti-tumor immune effect against various tumors through a suppressive effect on regulatory T-cells. We herein report a patient with peripheral T-cell lymphoma who developed Epstein-Barr virus (EBV)-related primary diffuse large B-cell lymphoma of the central nervous system (CNS DLBCL) after mogamulizumab therapy. Our experience should alert physicians to the possibility of the development of EBV-related CNS DLBCL in patients treated for primary lymphoma and suggests that the anti-tumor immune effect of mogamulizumab is ineffective for the prophylaxis of EBV-related lymphomas...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28923647/is-cytomegalovirus-surveillance-necessary-for-patients-with-low-reactivation-risk-in-an-autologous-hematopoietic-cell-transplantation-setting
#8
A H Kaya, E Tekgunduz, S Akpinar, H Batgi, F Bekdemir, O Kayikci, S Namdaroglu, B U Ulu, M S Dal, M K Cakar, S Korkmaz, F Altuntas
BACKGROUND: In an autologous hematopoietic cell transplantation (AHCT) setting, routine cytomegalovirus (CMV) surveillance is not indicated except in high-risk situations. On the other hand, some studies reported increased CMV reactivation in AHCT setting as a result of incorporation of novel agents into treatment algorithms, such as bortezomib and rituximab. We retrospectively analyzed CMV reactivation and infection rates in patients with no high-risk features, who were treated with AHCT...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28922443/primary-hepatic-lymphoma-complicated-by-a-hepatic-inflammatory-pseudotumor-and-tumor-forming-pancreatitis
#9
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/28922425/hypoxia-inducible-factor-1-alpha-as-a-therapeutic-target-for-primary-effusion-lymphoma
#10
Prabha Shrestha, David A Davis, Ravindra P Veeranna, Robert F Carey, Coralie Viollet, Robert Yarchoan
Primary effusion lymphoma (PEL) is an aggressive B-cell lymphoma with poor prognosis caused by Kaposi's sarcoma-associated herpesvirus (KSHV). Previous studies have revealed that HIF-1α, which mediates much of the cellular response to hypoxia, plays an important role in life cycle of KSHV. KSHV infection promotes HIF-1α activity, and several KSHV genes are in turn activated by HIF-1α. In this study, we investigated the effects of knocking down HIF-1α in PELs. We observed that HIF-1α knockdown in each of two PEL lines leads to a reduction in both aerobic and anaerobic glycolysis as well as lipid biogenesis, indicating that HIF-1α is necessary for maintaining a metabolic state optimal for growth of PEL...
September 18, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28922238/primary-central-nervous-system-lymphoma-time-for-diagnostic-biomarkers-and-biotherapies
#11
Louis Royer-Perron, Khê Hoang-Xuan, Agusti Alentorn
PURPOSE OF REVIEW: Primary central nervous system lymphoma (PCNSL) is a rare cancer with a somber prognosis in older patients, which it affects predominantly. Only in recent years have molecular alterations characterizing PCNSL been thoroughly described. This opens possibilities for the use of targeted therapies. Developments in imaging and biomarkers have also great potential to help clinicians faced with diagnostic and prognostic uncertainties. RECENT FINDINGS: Several biomarkers for PCNSL, such as different microRNAs, which could be tested in cerebrospinal fluid and vitreous fluid, and IL-10, which has been shown to have excellent sensitivity and specificity in the cerebrospinal fluid, have emerged in the last years...
September 15, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28921451/distribution-of-malignant-lymphomas-in-the-anterior-mediastinum-a-single-institution-study-of-76-cases-in-japan-1997-2016
#12
Akiko Miyagi Maeshima, Hirokazu Taniguchi, Tomotaka Suzuki, Sayako Yuda, Kosuke Toyoda, Nobuhiko Yamauchi, Shinichi Makita, Suguru Fukuhara, Wataru Munakata, Dai Maruyama, Yukio Kobayashi, Kensei Tobinai
We analyzed the distribution of tumors and lymphomas of the anterior mediastinum diagnosed between 1997 and 2016 at the National Cancer Center Hospital, Japan. The median age of 283 patients with anterior mediastinal tumors was 48 (range 6-84) years, and 143 (51%) were male. The incidence of tumors was as follows: thymoma, 34%; thymic carcinoma, 16%; primary mediastinal large B-cell lymphoma (PMBL), 13%; germ cell tumors, 10%; classical Hodgkin lymphoma (CHL), 9%; thymic cyst, 7%; metastatic tumors, 3%; T lymphoblastic leukemia/lymphoma (T-LBL), 2%; other lymphomas, 3%; and others, 3%...
September 18, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28915671/integration-of-alv-into-ctdspl-and-ctdspl2-genes-in-b-cell-lymphomas-promotes-cell-immortalization-migration-and-survival
#13
Shelby Winans, Alyssa Flynn, Sanandan Malhotra, Vidya Balagopal, Karen L Beemon
Avian leukosis virus induces tumors in chickens by integrating into the genome and altering expression of nearby genes. Thus, ALV can be used as an insertional mutagenesis tool to identify novel genes involved in tumorigenesis. Deep sequencing analysis of viral integration sites has identified CTDSPL and CTDSPL2 as common integration sites in ALV-induced B-cell lymphomas, suggesting a potential role in driving oncogenesis. We show that in tumors with integrations in these genes, the viral promoter is driving the expression of a truncated fusion transcript...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915427/breast-lymphoma-in-a-patient-with-b-cell-non-hodgkin-lymphoma-a-case-report-study
#14
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/28912427/dna-methylation-profiling-reveals-common-signatures-of-tumorigenesis-and-defines-epigenetic-prognostic-subtypes-of-canine-diffuse-large-b-cell-lymphoma
#15
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
#16
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
#17
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/28910817/the-lung-in-dysregulated-states-of-humoral-immunity
#18
Yurdagül Uzunhan, Florence Jeny, Marianne Kambouchner, Morgane Didier, Diane Bouvry, Hilario Nunes, Jean-François Bernaudin, Dominique Valeyre
In common variable immunodeficiency, lung manifestations are related to different mechanisms: recurrent pneumonias due to encapsulated bacteria responsible for diffuse bronchiectasis, diffuse infiltrative pneumonia with various patterns, and lymphomas, mostly B cell extranodal non-Hodgkin type. The diagnosis relies on significant serum Ig deficiency and the exclusion of any primary or secondary cause. Histopathology may be needed. Immunoglobulin (IgG) replacement is crucial to prevent infections and bronchiectasis...
September 15, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28900344/primary-diffuse-large-b-cell-lymphoma-of-the-breast-a-rare-case-and-review-of-literature
#19
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/28891406/clinical-practice-guideline-evaluation-of-the-neck-mass-in-adults
#20
Melissa A Pynnonen, M Boyd Gillespie, Benjamin Roman, Richard M Rosenfeld, David E Tunkel, Laura Bontempo, Itzhak Brook, Davoren Ann Chick, Maria Colandrea, Sandra A Finestone, Jason C Fowler, Christopher C Griffith, Zeb Henson, Corinna Levine, Vikas Mehta, Andrew Salama, Joseph Scharpf, Deborah R Shatzkes, Wendy B Stern, Jay S Youngerman, Maureen D Corrigan
Objective Neck masses are common in adults, but often the underlying etiology is not easily identifiable. While infections cause most of the neck masses in children, most persistent neck masses in adults are neoplasms. Malignant neoplasms far exceed any other etiology of adult neck mass. Importantly, an asymptomatic neck mass may be the initial or only clinically apparent manifestation of head and neck cancer, such as squamous cell carcinoma (HNSCC), lymphoma, thyroid, or salivary gland cancer. Evidence suggests that a neck mass in the adult patient should be considered malignant until proven otherwise...
September 2017: Otolaryngology—Head and Neck Surgery
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