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MALT lymphoma

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https://www.readbyqxmd.com/read/28331132/orbital-malt-lymphoma-after-autologous-stem-cell-transplantation-for-follicular-lymphoma-as-relapse-of-diffuse-large-b-cell-lymphoma
#1
Toshihiko Matsuo, Takehiro Tanaka, Nobuharu Fujii
We report a patient who developed orbital MALT lymphoma after autologous peripheral blood stem cell transplantation for follicular lymphoma as relapse of diffuse large B-cell lymphoma. A 54-year-old woman with systemic lymphadenopathy was diagnosed with diffuse large B-cell lymphoma by left supraclavicular lymph node biopsy, and underwent 6 courses of R-CHOP chemotherapy with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone, leading to complete response. Five years later in the follow-up, an abdominal mass with abnormal uptake was found by whole-body 2-[(18)F]fluoro-2-deoxy-D-glucose positron emission tomography, and computed tomography-guided biopsy demonstrated follicular lymphoma...
2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/28289662/mucosa-associated-lymphoid-tissue-lymphoma-of-the-cecum-and-rectum-a-case-report
#2
Myung Jin Nam, Byung Chang Kim, Sung Chan Park, Chang Won Hong, Kyung Su Han, Dae Kyung Sohn, Weon Seo Park, Hee Jin Chang, Jae Hwan Oh
A colonic mucosa-associated lymphoid-tissue (MALT) lymphoma is relatively rare compared to lymphomas of the stomach or small intestine. We present a case of a MALT lymphoma in the cecum and rectum found during screening colonoscopy. A 54-year-old female, who had undergone right-breast-conserving surgery with axillary dissection due to an invasive ductal carcinoma and a left-breast excisional biopsy due to microcalcification following adjuvant chemoradiation therapy 3 years earlier, was found to have 3-mm-sized smooth elevated lesions in both the cecum and rectum...
February 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28288723/clinical-features-and-management-of-non-gastrointestinal-non-ocular-extranodal-mucosa-associated-lymphoid-tissue-enmalt-marginal-zone-lymphomas
#3
REVIEW
Estella Matutes, Carlos Montalban
Extranodal mucosa associated lymphoid tissue (ENMALT) marginal zone lymphomas may arise at any site of the body. The most frequent localizations other than gastrointestinal and eye are salivary gland, skin, lung and thyroid. These lymphomas usually arise in a setting of inflammation due to a persistent infection or autoimmune diseases such as Sjogren syndrome in salivary MALT lymphomas and Hashimoto's thryroiditis in thyroid lymphomas. They affect middle-aged patients with a female predominance when lymphoma arises in certain locations...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288722/nodal-marginal-zone-lymphoma-clinical-features-diagnosis-management-and-treatment
#4
REVIEW
Tamar Tadmor, Aaron Polliack
Nodular marginal zone lymphoma (NMZL) is a small B-cell lymphoma involving only lymph nodes and is the least common form of MZL constituting about 10% of cases. Patients usually present with advanced disease which must be distinguished from extranodal MZL with lymph node spread. NMZL shares cytological and immunophenotypic features with MALT and splenic MZL, but has a less favorable prognosis than these two categories. It occurs mostly in adults and pediatric cases are rare. Different therapeutic approaches have been used in NMZL, but because of the small patient numbers involved, more definitive treatment is still anticipated...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288719/marginal-zone-lymphoma-associated-autoimmunity-and-auto-immune-disorders
#5
REVIEW
Larissa Sena Teixeira Mendes, Andrew Wotherspoon
Large epidemiological studies have shown a consistent increased risk for developing lymphoma in the setting of autoimmune disorders (AID). It is known that this link appears to be stronger for some AID and certain non-Hodgkin lymphoma subtypes e.g. Sjögren's syndrome and extra-nodal marginal zone lymphoma of the salivary gland, and thyroid MALT lymphoma in a background of Hashimoto's thyroiditis. B and T-cell hyperactivity due to chronic antigenic stimulation and the consequent presence of acquired lymphoid tissue seems to play a key role in the pathogenesis of AI-related lymphomas...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288717/pathology-of-nodal-marginal-zone-lymphomas
#6
REVIEW
Stefano Pileri, Maurilio Ponzoni
Nodal marginal zone B cell lymphomas (NMZLs) are a rare group of lymphoid disorders part of the spectrum of marginal zone B-cell lymphomas, which encompass splenic marginal one B-cell lymphoma (SMZL) and extra nodal marginal zone of B-cell lymphoma (EMZL), often of MALT-type. Two clinicopathological forms of NMZL are recognized: adult-type and pediatric-type, respectively. NMZLs show overlapping features with other types of MZ, but distinctive features as well. In this review, we will focus on the salient distinguishing features of NMZL mostly under morphological/immunophenotypical/molecular perspectives in views of the recent acquisitions and forthcoming updated 2016 WHO classification of lymphoid malignancies...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288714/bacteria-associated-with-marginal-zone-lymphomas
#7
REVIEW
Maurilio Ponzoni, Andrés J M Ferreri
In the last decades some bacteria have been associated with a various extent with marginal zone (extra nodal, nodal and splenic types) lymphomas are frequently associated with chronic infections, with important clinical, molecular, biological, and therapeutic implications. The well-known correlation between Helicobacter pylori and gastric MALT-lymphoma, the recently reported links between Chlamydia psittaci and ocular adnexal MALT-lymphoma and Borrelia burgdorferi and cutaneous MALT lymphoma constitute the most studied examples; in addition, Campylobacter jejuni and some more recent associations encompassing Achromobacter xylosoxidans and Haemophilus influenzae will be further reported...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288713/methylation-patterns-in-marginal-zone-lymphoma
#8
REVIEW
Alberto J Arribas, Francesco Bertoni
Promoter DNA methylation is a major regulator of gene expression and transcription. The identification of methylation changes is important for understanding disease pathogenesis, for identifying prognostic markers and can drive novel therapeutic approaches. In this review we summarize the current knowledge regarding DNA methylation in MALT lymphoma, splenic marginal zone lymphoma, nodal marginal zone lymphoma. Despite important differences in the study design for different publications and the existence of a sole large and genome-wide methylation study for splenic marginal zone lymphoma, it is clear that DNA methylation plays an important role in marginal zone lymphomas, in which it contributes to the inactivation of tumor suppressors but also to the expression of genes sustaining tumor cell survival and proliferation...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288708/transformation-of-marginal-zone-lymphoma-and-association-with-other-lymphomas
#9
REVIEW
Carla Casulo, Jonathan Friedberg
Marginal zone lymphomas (MZL) are a diverse group of indolent lymphoproliferative disorders that comprise three subtypes: nodal, splenic and mucosal associated marginal zone lymphomas (MALT). Histologic transformation (HT) to an aggressive lymphoma is a rare event that can occur in any subtype, and at lower frequency compared to other indolent non Hodgkin lymphomas (NHL) like follicular lymphoma. There are few data directly associated with risk and prognosis of transformation in MZL. However, recent advances in the understanding of molecular and genetic features of MALT have contributed to an evolving appreciation of HT in this disease...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288707/malt-lymphoma-genetic-abnormalities-immunological-stimulation-and-molecular-mechanism
#10
REVIEW
Ming-Qing Du
Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) occurs at diverse anatomic sites and is closely associated with several distinct chronic inflammatory disorders. Both the acquired genetic abnormalities and active chronic immunological responses play a critical role in the development of MALT lymphoma, interestingly by dysregulating similar molecular mechanisms. The three translocations seen in MALT lymphoma, namely t(14;18)(q32;q21)/IGH-MALT1, t(1;14)(p22;q32)/BCL10-IGH, and t(11;18)(q21;q21)/BIRC3 (API2)-MALT1 are capable of activating both canonical and non-canonical NF-κB pathways...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288705/clinical-aspects-and-therapy-of-gastrointestinal-malt-lymphoma
#11
REVIEW
Catherine Thieblemont, Emanuele Zucca
Extranodal marginal zone B-cell lymphomas of the mucosa associated lymphoid tissue (MALT) arise from lymphoid populations that are induced by chronic inflammation in extranodal sites. Among the MALT lymphomas, gastrointestinal (GIT) MALT lymphoma is the most frequent compared to non-GIT MALT lymphoma arising from other sites. Gastric MALT lymphoma has been the first to be described with the evidence of an etiopathogenetic link provided by the association between Helicobacter pylori-positive gastritis and gastric MALT lymphoma...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28284742/local-disease-control-in-ocular-adnexal-lymphoproliferative-disorders-comparative-outcomes-of-malt-versus-non-malt-histologies
#12
Binod Dhakal, Timothy S Fenske, Sridevi Ramalingam, Jamie Shuff, Narendranath Epperla, Paul Hosking, Lisa Rein, Anjisnu Banerjee, Parameswaran Hari, Anita D'Souza, Nirav Shah, Malika Siker, Gregory J Griepentrog, Gerald J Harris, Timothy S Wells, Beth A Erickson, Mehdi Hamadani
INTRODUCTION: Ocular adnexal lymphoproliferative disorders (OALDs) are almost exclusively of B-cell origin, with the majority being extra-nodal marginal zone lymphomas of mucosa-associated lymphoid tissue (MALT). The comparative efficacy of involved field radiation therapy (IFRT) in MALT vs. non-MALT OALDs is not known. MATERIALS AND METHODS: We present a single-center, large cohort, retrospective study of the efficacy of IFRT in OALDs. Failure-free survival (FFS), complete remission, and local, regional, and distant failure were determined for 112 patients with MALT OALDs (n = 71) and non-MALT OALDs (n = 41) cohorts...
February 16, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28284183/multiparametric-cardiac-magnetic-resonance-imaging-cmr-for-the-diagnosis-of-loeffler-s-endocarditis-a-case-report
#13
Mareike Gastl, Patrick Behm, Christoph Jacoby, Malte Kelm, Florian Bönner
BACKGROUND: Endocarditis parietalis fibroplastica Löfflein (EPF) is a rare form of primary restrictive cardiomyopathy with poor prognosis. It is generally caused by hypereosinophilic syndrome with eosinophilic penetration of the heart. This leads to congestive heart failure in three different stages. As a frequent manifestation of neoplastic diseases, cardiac involvement means poor prognosis. CASE PRESENTATION: The present report deals with a case of EPF caused by non-specified T-cell lymphoma (T-NOS)...
March 11, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28278700/clinical-histopathological-and-molecular-features-of-mucosa-associated-lymphoid-tissue-malt-lymphoma-carrying-the-t-x-14-p11-q32-gpr34-immunoglobulin-heavy-chain-gene
#14
Takashi Akasaka, Yin-Fai Lee, Anne J Novak, Gen Honjo, Kayo Takeoka, Fumiyo Maekawa, Katsuhiro Fukutsuka, Masahiko Hayashida, Hitoshi Ohno
No abstract text is available yet for this article.
February 28, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28278699/malt1-sequencing-analyses-in-marginal-zone-b-cell-lymphomas-reveal-mutations-in-the-translocated-malt1-allele-in-an-igh-malt1-positive-malt-lymphoma
#15
Nuray Akyüz, Nadine Albert-Konetzny, Christiane Pott, Evelyne Callet-Bauchu, Carsten Bokemeyer, Eva Maria Murga Penas, Judith Dierlamm
No abstract text is available yet for this article.
March 2, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28270020/18f-fdg-pet-ct-and-extragastric-malt-lymphoma-role-of-ki-67-score-and-plasmacytic-differentiation
#16
Domenico Albano, Giovanni Bosio, Raffaele Giubbini, Francesco Bertagna
The detection rate of fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in extragastric mucosa associated lymphoid tissue (MALT) lymphoma is under debate and the reason is not clear. Our aim was to investigate the metabolic behavior of extragastric MALT lymphoma and whether the histological features (Ki-67 index and plasmacytic differentiation, PD) might explain it. PET/CT images were analyzed visually and semi-quantitatively and compared with Ki-67 index and PD...
March 7, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28241409/twin-rectal-tonsils-mimicking-carcinoid-or-mucosa-associated-lymphoid-tissue-lymphoma
#17
Masanori Takehara, Naoki Muguruma, Shinji Kitamura, Tetsuo Kimura, Koichi Okamoto, Hiroshi Miyamoto, Yoshimi Bando, Tetsuji Takayama
The rectal tonsil is a rare polypoid lesion exclusively found in the rectum and is considered a reactive proliferation of the lymphoid tissue. Although this lesion is benign, we recommend that it should be differentiated from carcinoid or polypoid type of mucosaassociated lymphoid tissue (MALT) lymphomas, based on gross findings. In this case report, we describe a case of rectal lesions with a unique appearance in a 41-year-old man. Colonoscopy revealed two 5-mm-sized nodules located opposite from each other on the left and right sides of the lower rectum...
February 28, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28233949/extranodal-marginal-zone-b-cell-lymphoma-of-mucosa-associated-lymphoid-tissue-with-plasma-cell-differentiation-periodic-acid-schiff-reaction-positive-dutcher-body-is-a-diagnostic-clue-to-distinguish-it-from-plasmacytoma
#18
Atsuko Nasu, Takuro Igawa, Hiaki Sato, Hiroyuki Yanai, Tadashi Yoshino, Yasuharu Sato
We herein report a case of primary parotid extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) with Dutcher bodies. An 82-year-old man presented with a 4 cm × 2.5 cm mass in the left parotid region. Positron emission tomography/computed tomography (PET/CT) showed localized abnormal fluorodeoxyglucose (FDG) uptake in the left parotid gland and lymph nodes of the left cervical region. Fine needle aspiration (FNA) cytology of the left parotid gland showed lymphoplasmacytoid cells with periodic acid-Schiff (PAS)-positive Dutcher bodies...
February 24, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28217252/primary-mucosa-associated-lymphoid-tissue-lymphoma-of-the-liver-a-report-of-two-cases-and-review-of-the-literature
#19
Ifeyinwa E Obiorah, Lynt Johnson, Metin Ozdemirli
Mucosa-associated lymphoid tissue (MALT) lymphoma of the liver is a very rare condition and thus the diagnosis may be challenging. The clinical presentation is usually variable, ranging from minimal clinical symptoms to severe end stage liver disease. In this paper, we describe the clinicopathologic findings in two cases of primary hepatic MALT lymphoma. One case is an 80-year-old female with no underlying chronic liver disease and the second case is a 30-year-old female with autoimmune hepatitis complicated by MALT lymphoma...
January 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28210093/mucosa-associated-lymphoid-tissue-lymphoma-with-unusual-18-f-fdg-hypermetabolism-arising-at-the-colorectal-anastomosis
#20
Na-Sha Zhang, Fang Shi, Li Kong, Hui Zhu
Mucosa-associated lymphoid tissue (MALT) lymphoma usually originates from the stomach and presents with low (18)F-fluorodeoxyglucose (FDG) avidity with average maximum standard uptake value of 3.6. Colorectal MALT lymphoma is a rare entity that contributes to 1.6% of all MALT lymphomas and < 0.2% of large intestinal malignancies. The case reported herein firstly revealed stage IIE MALT lymphoma with unexpected higher (18)F-FDG avidity of 18.9 arising at the colorectal anastomosis in a patient with a surgical history for sigmoid adenocarcinoma, which was strongly suspected as local recurrence before histopathological and immunohistochemical examinations...
January 21, 2017: World Journal of Gastroenterology: WJG
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