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Anna Kocurek, Bogdan Małkowski, Agnieszka Giza, Wojciech Jurczak
AIM OF THE STUDY: Determining the role of PET/CT imaging in the evaluation of treatment efficacy in primary mediastinal B-cell lymphoma (PMBCL). MATERIAL AND METHODS: Retrospective analysis of seven PMBCL patients, treated at the University Hospital in Krakow, with interim PET/CT after the third course of chemo-immunotherapy.The analysis was based on the calculation of exact tumour volume and metabolic activity, compared with initial values (directly after diagnosis)...
2016: Contemporary Oncology Współczesna Onkologia
C C Pinnix, Z Abou Yehia, W Qiao, S A Milgrom, G L Smith, M Akhtari, J Reddy, J R Gunther, E M Osborne, O R Mawlawi, L J Medeiros, N Garg, H H Chuang, S Neelapu, J R Westin, B Dabaja
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Haa-Na Song, Seok Jin Kim, Young Hyeh Ko, Won Seog Kim
BACKGROUND: Mediastinal gray zone lymphoma (MGZL) shares clinical characteristics with primary mediastinal B-cell lymphoma (PMBCL) and nodular sclerosing Hodgkin lymphoma (NSHL). However, MGZL is extremely rare, and an appropriate treatment for it has not yet been established. METHODS: We retrospectively analyzed 8 patients who were treated with systemic chemotherapy for MGZL between 2007 and 2014. RESULTS: The patients with MGZL were predominantly young and male (median age 26 years), and 62...
2016: Acta Haematologica
Luca Ceriani, Sally Barrington, Alberto Biggi, Bogdan Malkowski, Ur Metser, Annibale Versari, Maurizio Martelli, Andrew Davies, Peter W Johnson, Emanuele Zucca, Stéphane Chauvie
The International Extranodal Lymphoma Study Group (IELSG)-37 is a prospective randomized trial assessing the role of consolidation mediastinal radiotherapy after immunochemotherapy to patients with newly diagnosed primary mediastinal large B-cell lymphoma (PMBCL). It is a positron emission tomography (PET) response-guided study where patients obtaining a complete metabolic response on an end-of-therapy PET-computed tomography (CT) scan evaluated by a central review are randomized to receive radiotherapy or no further treatment...
August 22, 2016: Hematological Oncology
Ya K Mangasarova, A U Magomedova, E S Nesterova, E M Volodicheva, V I Vorob'ev, S K Kravchenko
AIM: to evaluate the efficiency of the R-DA-EPOCH-21 + R-DHAP protocol and autologous hematopoietic stem cell transplantation (a BEAM conditioning mode) in first-line therapy for primary mediastinal large B-cell lymphoma (PMBCL). SUBJECTS AND METHODS: In 2013 to 2016, the investigation enrolled 57 patients with newly diagnosed PMBCL (according to the 2008 WHO criteria). The results were analyzed in 40 patients who had completed their treatment. RESULTS: All the 40 patients (14 men and 26 women) (median age, 27 years (19 to 67 years)) received 6 cycles of polychemotherapy (PCT) in accordance with the R-DA-EPOCH-21 regimen...
2016: Terapevticheskiĭ Arkhiv
Chiara De Philippis, Maria Chiara Di Chio, Elena Sabattini, Niccolo Bolli
Primary mediastinal large B-cell lymphoma (PMBCL) is confined to the mediastinum or contiguous nodal areas in most cases. Extramediastinal and abdominal involvement, especially at diagnosis, is extremely rare. Our case describes the first case of histologically proven ileal involvement of PMBCL at diagnosis that led to ileal perforation. Positron emission tomography CT could increase the sensitivity of staging by detecting unusual sites of disease localisation, and could impact clinical management.
2016: BMJ Case Reports
Andrea Riccardo Filippi, Cristina Piva, Mario Levis, Annalisa Chiappella, Daniele Caracciolo, Marilena Bellò, Gianni Bisi, Umberto Vitolo, Umberto Ricardi
PURPOSE: To validate, in a monoinstitutional cohort with extended follow-up, that post-rituximab chemotherapy (R-CT) (18)F-fluorodeoxyglucose positron emission tomography ((18)FDG-PET) is a prognostic factor allowing discrimination of primary mediastinal B-cell lymphoma (PMBCL) patients at higher risk for progression after radiation therapy. METHODS AND MATERIALS: We analyzed 51 patients, and (18)FDG-PET scans were re-examined evaluating both the Deauville 5-point scale (D5PS) score and the standardized uptake value (SUV) of residual activity, if present...
July 15, 2016: International Journal of Radiation Oncology, Biology, Physics
Anuj Verma, Tanuja Shet, Sridhar Epari, Manjudevi Gupta, Sumeet Gujral, Nehal Khanna, Siddhartha Laskar, Manju Sengar, Brijesh Arora, Hari Menon, Shripad Banavali
AIM: To identify aggressively behaving classical Hodgkin lymphoma (CHL) of mediastinum and primary mediastinal B-cell lymphoma (PMBCL) and to classify them as mediastinal gray zone lymphoma(MGZL) and to define a minimum immunopanel for the diagnosis of MGZL. MATERIALS AND METHODS: Ninety-two mediastinal B-cell lymphomas were reviewed with a wide immunopanel and were classified as CHL, PMBCL, or MGZL. CHL with an expression of 3 or 4 transcription factors performed worse, and hence the CHL with ≥3 transcription factors were classified as MGZL-CHL...
August 2016: International Journal of Surgical Pathology
Matthew W Jackson, Chad G Rusthoven, Bernard L Jones, Manali Kamdar, Rachel Rabinovitch
Primary mediastinal B-cell lymphoma (PMBCL) is an uncommon lymphoma for which existing data is limited. We utilized the National Cancer Database (NCDB) to evaluate PMBCL and the impact of radiotherapy (RT) on outcomes in the years following FDA approval of rituximab. We queried the NCDB for patients with PMBCL diagnosed from 2006 to 2011 and treated with multiagent chemotherapy. Kaplan-Meier overall survival (OS) estimates, univariate (UVA), and multivariate (MVA) Cox proportional hazards regression analyses were performed...
May 2016: American Journal of Hematology
Anja Mottok, Bruce Woolcock, Fong Chun Chan, King Mong Tong, Lauren Chong, Pedro Farinha, Adèle Telenius, Elizabeth Chavez, Suvan Ramchandani, Marie Drake, Merrill Boyle, Susana Ben-Neriah, David W Scott, Lisa M Rimsza, Reiner Siebert, Randy D Gascoyne, Christian Steidl
Primary mediastinal large B cell lymphoma (PMBCL) is an aggressive non-Hodgkin's lymphoma, predominantly affecting young patients. We analyzed 45 primary PMBCL tumor biopsies and 3 PMBCL-derived cell lines for the presence of genetic alterations involving the major histocompatibility complex (MHC) class II transactivator CIITA and found frequent aberrations consisting of structural genomic rearrangements, missense, nonsense, and frame-shift mutations (53% of primary tumor biopsies and all cell lines). We also detected intron 1 mutations in 47% of the cases, and detailed sequence analysis strongly suggests AID-mediated aberrant somatic hypermutation as the mutational mechanism...
November 17, 2015: Cell Reports
Matthew W Jackson, Chad G Rusthoven, Bernard L Jones, Manali Kamdar, Rachel Rabinovitch
BACKGROUND: Primary mediastinal B cell lymphoma (PMBCL) is an uncommon lymphoma for which trials are few with small patient numbers. The role of radiation therapy (RT) after standard immunochemotherapy for early-stage disease has never been studied prospectively. We used the Surveillance, Epidemiology, and End Results (SEER) database to evaluate PMBCL and the impact of RT on outcomes. METHODS AND MATERIALS: We queried the SEER database for patients with stage I-II PMBCL diagnosed from 2001 to 2011...
January 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Michel Meignan
In this issue of Blood, Ceriani et al introduce, in primary mediastinal B-cell lymphoma (PMBCL), a new prognostic factor measured on pretreatment 18F-fluorodeoxyglucose (18FDG)-positron emission tomography (PET)/computed tomography (CT): the total lesion glycolysis (TLG), which is an index of the glucose uptake by the total tumor burden. This paper is part of the International Extranodal Lymphoma Study Group (IELSG) 26 prospective study designed to evaluate the role of PET in the treatment of PMBCL.
August 20, 2015: Blood
Smith Giri, Vijaya Raj Bhatt, Ranjan Pathak, R Gregory Bociek, Julie M Vose, James O Armitage
The use of radiation (RT) in primary mediastinal large B-cell lymphoma (PMBCL) may predispose young patients to the risk of cardiopulmonary toxicities and secondary malignancies. We used Surveillance, Epidemiology and End Results (SEER) 18 database to compare the overall survival (OS) differences among adult patients treated with and without RT after rituximab approval in the US. Multivariate analyses were performed using Cox proportional hazards regression to compare OS based on the use of RT while adjusting for age, year of diagnosis, race, stage and gender...
November 2015: American Journal of Hematology
Yongjie Xue, Qiulan Wang, Xuejiao He
Diffuse large B cell lymphoma (DLBCL) is a diffuse proliferation of large neoplastic B lymphoid cells with nuclear size equal to or exceeding that of normal macrophage nuclei. The DLBCL morphological variants are centroblastic, immunoblastic, T-cell- and histiocyte-rich, anaplastic, plasmablastic, anaplastic lymphoma kinase-positive, and primary mediastinal large B-cell lymphoma (PMBCL). These histopathologically-recognized morphological variants respond differently to treatment and have distinct prognoses...
2015: International Journal of Clinical and Experimental Pathology
Michael S Binkley, Susan M Hiniker, Sharon Wu, Yasodha Natkunam, Erik S Mittra, Ranjana H Advani, Richard T Hoppe
As the optimal treatment for primary mediastinal large B-cell lymphoma (PMBCL) remains undefined, we evaluated outcomes of patients treated with standard and dose-intense rituximab-chemotherapy (R-CT) with and without radiotherapy (RT). We retrospectively identified 28 patients with stage I-II PMBCL in our lymphoma database, re-reviewed pathology slides and scored interim or post-chemotherapy PET/CTs using the Deauville scale. Fourteen patients received RT (36-45 Gy) preceded by either six cycles of rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) or 12 weeks of rituximab, etoposide, doxorubicin, cyclophosphamide, vincristine, prednisone and bleomycin (R-VACOP-B) with median follow-up of 94 months...
2016: Leukemia & Lymphoma
Luca Ceriani, Maurizio Martelli, Pier Luigi Zinzani, Andrés J M Ferreri, Barbara Botto, Caterina Stelitano, Manuel Gotti, Maria Giuseppina Cabras, Luigi Rigacci, Livio Gargantini, Francesco Merli, Graziella Pinotti, Donato Mannina, Stefano Luminari, Anastasios Stathis, Eleonora Russo, Franco Cavalli, Luca Giovanella, Peter W M Johnson, Emanuele Zucca
The International Extranodal Lymphoma Study Group (IELSG) 26 study was designed to evaluate the role of (18)F-fluorodeoxyglucose (18FDG) positron emission tomography/computed tomography (PET/CT) in the management of primary mediastinal (thymic) large B-cell lymphoma (PMBCL). We examined the prognostic impact of functional PET parameters at diagnosis. Metabolic activity defined by the maximum standardized uptake value (SUVmax), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) was measured on baseline 18FDG PET/CT following a standard protocol in a prospectively enrolled cohort of 103 PMBCL patients...
August 20, 2015: Blood
Vijaya Raj Bhatt, Rajesh Mourya, Runa Shrestha, James O Armitage
The management of primary mediastinal large B-cell lymphoma (PMBCL) requires a balance between optimizing chances of cure and reducing risk of long-term toxicities. The combination of rituximab to cyclophosphamide, doxorubicin, vincristine and prednisone (RCHOP) followed by mediastinal radiation results in a plateau in progression-free survival after first few years of follow-up. In rituximab era, a negative positron emission tomography (PET) scan performed after the completion of immunochemotherapy has a high predictive value for durable remission...
June 2015: Cancer Treatment Reviews
Chelsea C Pinnix, Bouthaina Dabaja, Mohamed Amin Ahmed, Hubert H Chuang, Colleen Costelloe, Christine F Wogan, Valerie Reed, Jorge E Romaguera, Sattva Neelapu, Yasuhiro Oki, M Alma Rodriguez, Luis Fayad, Frederick B Hagemeister, Loretta Nastoupil, Francesco Turturro, Nathan Fowler, Michelle A Fanale, Yago Nieto, Issa F Khouri, Sairah Ahmed, L Jeffrey Medeiros, Richard Eric Davis, Jason Westin
PURPOSE: Excellent outcomes obtained after infusional dose-adjusted etoposide, doxorubicin, cyclophosphamide, vincristine, prednisone, and rituximab (R-EPOCH) alone have led some to question the role of consolidative radiation therapy (RT) in the treatment of primary mediastinal B cell lymphoma (PMBL). We reviewed the outcomes in patients treated with 1 of 3 rituximab-containing regimens (cyclophosphamide, doxorubicin, vincristine, prednisone [R-CHOP]; hyperfractionated cyclophosphamide, vincristine, doxorubicin and dexamethasone [R-HCVAD], or R-EPOCH) with or without RT...
May 1, 2015: International Journal of Radiation Oncology, Biology, Physics
Kieron Dunleavy, Christian Steidl
While primary mediastinal large B-cell lymphoma (PMBCL) is considered to be a subtype of diffuse large B-cell lymphoma, it is a distinct clinicopathologic entity, with clinical and biological features closely resembling nodular sclerosing Hodgkin lymphoma. Recent studies have highlighted the shared biology of these two entities and identified novel critical pathways of lymphomagenesis, including the presence of distinct mutations. Mediastinal grey zone lymphomas with features in between PMBCL and nodular sclerosing Hodgkin lymphoma have been described as the missing link between the two parent entities...
April 2015: Seminars in Hematology
Sheng-Hsiang Yang, Liang-Tsai Hsiao, Tzeon-Jye Chiou, Ching-Fen Yang, Yuan-Bin Yu, Chun-Yu Liu, Jyh-Pyng Gau, Jin-Hwang Liu, Po-Min Chen, Cheng-Hwai Tzeng
BACKGROUND: Primary mediastinal large B-cell lymphoma (PMBCL) is a rare malignancy that has been reported in young individuals, especially young women. Patients with PMBCL commonly receive rituximab induction. This single-institution study was designed to analyze the clinical benefits of rituximab induction and its impact on postinduction treatments (PITs), especially radiotherapy. METHODS: The benefits of rituximab induction were evaluated by complete response (CR), early treatment failure, relapse, and overall survival (OS) rates...
July 2015: Journal of the Chinese Medical Association: JCMA
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