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MALT lymphoma

Ipek Yonal-Hindilerden, Fehmi Hindilerden, Serkan Arslan, Nalan Turan-Guzel, Ibrahim Oner Dogan, Meliha Nalcaci
A 61-year-old woman was admitted to our hospital with an ulcerated palate mass and swelling of the right parotid gland. Incisional biopsy from the hard palate revealed an extranodal marginal zone B-cell lymphoma, also called mucosa-associated lymphoid tissue (MALT) lymphoma. Final diagnosis was MALT lymphoma of the parotid gland with concomitant involvement of an extremely seldom site of involvement: the hard palate. To our knowledge, this report illustrates the first case of MALT lymphoma of the hard palate and parotid gland without an underlying autoimmune disease...
November 2016: Journal of Clinical Medicine Research
Hyeon Woo Lim, Tae Hyun Kim, Il Ju Choi, Chan Gyoo Kim, Jong Yeul Lee, Soo Jeong Cho, Hyeon Seok Eom, Sung Ho Moon, Dae Yong Kim
PURPOSE: To assess the clinical outcomes of radiotherapy (RT) using two-dimensional (2D) and three-dimensional conformal RT (3D-CRT) for patients with gastric mucosa-associated lymphoid tissue (MALT) lymphoma to evaluate the effectiveness of involved field RT with moderate-dose and to evaluate the benefit of 3D-CRT comparing with 2D-RT. MATERIALS AND METHODS: Between July 2003 and March 2015, 33 patients with stage IE and IIE gastric MALT lymphoma received RT were analyzed...
September 2016: Radiation Oncology Journal
Łukasz Hołubiuk, Jacek Imiela
Helicobacter pylori infection has accompanied man for thousands of years. In some infected patients, a complex and dynamic pathogen-host reaction triggers pathogenic pathways resulting in development, inter alia, of atrophic gastritis, peptic ulcer disease (both gastric and duodenal), gastric adenocarcinoma, and MALT lymphoma. Large-scale eradication therapy is associated with a rapid increase in antibiotic resistance, gut flora composition disturbances, and increased risk of development, inter alia, of paediatric infectious diarrhoeas, atopic diseases, and oesophageal adenocarcinoma...
2016: Przegla̜d Gastroenterologiczny
Sanghui Park, Soomin Ahn, Mineui Hong, Young Hyeh Ko
Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is a rare extranodal marginal zone B-cell lymphoma that is often associated with plasmacytic differentiation. However, the clinicopathologic characteristics of gastric MALT lymphoma with increased plasmacytic differentiation have not yet been studied. To assess the clinicopathologic implications of gastric MALT lymphoma with increased plasmacytic differentiation, thirty-six cases with increased plasmacytic differentiation and a control group of 16 cases with minimal plasmacytic differentiation were retrospectively collected from 65 primary gastric MALT lymphomas (2010~2012)...
September 30, 2016: Human Pathology
Kathryn P Haley, Jennifer A Gaddy
Helicobacter pylori colonizes the stomachs of greater than 50% of the world's human population making it arguably one of the most successful bacterial pathogens. Chronic H. pylori colonization results in gastritis in nearly all patients; however in a subset of people, persistent infection with H. pylori is associated with an increased risk for more severe disease outcomes including B-cell lymphoma of mucosal-associated lymphoid tissue (MALT lymphoma) and invasive adenocarcinoma. Research aimed at elucidating determinants that mediate disease progression has revealed genetic differences in both humans and H...
2016: Gastroenterology Research and Practice
B W Fischer-Valuck, A Chundury, T R Mazur, O L Green, H Li, S Mutic, M A Thomas, J Huang
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Jun-Ichiro Ikeda, Masaharu Kohara, Yoko Tsuruta, Satoshi Nojima, Shinichiro Tahara, Kenji Ohshima, Masako Kurashige, Naoki Wada, Eiichi Morii
Marginal zone lymphoma (MZL) is a low-grade B-cell lymphoma derived from marginal-zone B cells. Because of a lack of specific immunohistochemical markers, MZL is mainly diagnosed based on the cytological appearance and growth pattern of the tumor. Marginal-zone B cells were recently shown to selectively express immunoglobulin superfamily receptor translocation-associated 1 (IRTA1), but the antibody used in that study is not commercially available. We therefore investigated the IRTA1 expression in non-neoplastic lymphoid tissues and 261 malignant lymphomas, examining the ability of a commercially available antibody to accurately diagnose MZL...
September 22, 2016: Human Pathology
Marius E Mayerhoefer, Georgios Karanikas, Kurt Kletter, Barbara Kiesewetter, Michael Weber, Ivo Rausch, Matthias Pones, Ingrid Simonitsch-Klupp, Leonhard Müllauer, Werner Dolak, Julius Lukas, Markus Raderer
PURPOSE: To determine whether interim F-FDG PET or interim diffusion-weighted magnetic resonance imaging (DWI) can predict the end-of-treatment (EOT) outcome after immunotherapy in patients with FDG-avid extranodal marginal zone B-cell lymphoma of the mucosa-associated lymphoid tissue (MALT). MATERIALS AND METHODS: Patients with untreated MALT lymphoma prospectively underwent whole-body F-FDG PET/CT and DWI before treatment (baseline), and after three cycles (interim) of rituximab-based immunotherapy...
November 2016: Clinical Nuclear Medicine
R Medeiros, O P de Almeida, J C Leão, L A Gueiros
Benign lymphoepithelial lesions (BLLs) usually affect the parotid glands, resulting in their asymmetrical enlargement. The condition can be associated with Sjögren's syndrome (SS), which in turn may predispose the affected patient to the development of malignant lymphoma. BLLs arising in the intraoral minor salivary glands are rare; such a lesion should prompt the work-up for SS. In some instances, a BLL of a minor salivary gland could represent the initial stage of a mucosa-associated lymphoid tissue (MALT) lymphoma...
September 12, 2016: International Journal of Oral and Maxillofacial Surgery
S N Hoehne, S P McDonough, M Rishniw, K W Simpson
Persistent bacterial infections of the gastrointestinal mucosa are causally linked to gastric carcinoma and mucosa-associated lymphoid tissue (MALT) lymphoma in people and laboratory animals. We examined the relationship of mucosa-associated bacteria to alimentary lymphoma in cats. Intestinal biopsies from 50 cats with alimentary lymphoma (small cell, n = 33; large cell, n = 17) and 38 controls without lymphoma (normal to minimal change on histopathology, n = 18; lymphocytic-plasmacytic enteritis, n = 20) were evaluated...
September 14, 2016: Veterinary Pathology
Domenico Albano, Mattia Bertoli, Paola Ferro, Federico Fallanca, Luigi Gianolli, Maria Picchio, Raffaele Giubbini, Francesco Bertagna
PURPOSE: The role of 18F-FDG-PET/CT in evaluating gastric MALT lymphoma is still controversial. In the literature the detection rate of 18F-FDG-PET/CT in patients with gastric MALT lymphoma is variable, and the reason for this heterogeneity is not still clear. Our aim was to investigate the particular metabolic behavior of these lymphoma. MATERIALS AND METHODS: Sixty-nine patients (26 female, 43 male) with histologically confirmed gastric MALT lymphoma who underwent a 18F-FDG-PET/CT for initial staging from two centers were included...
September 12, 2016: European Journal of Nuclear Medicine and Molecular Imaging
L Quéro, C Hennequin, S Amorim, S Guillerm, A Ruskoné-Fourmestraux, C Thieblemont
Primary gastric and orbital MALT lymphomas are both low grade (indolent) B-cell non-Hodgkin's lymphomas. Traditionally, these tumors are radiosensitive and have a good prognosis. In localized orbital and stages IE-IIE gastric MALT lymphomas without Helicobacter pylori infection or in case of persistent H. pylori infection after eradication therapy, several retrospective studies have shown that radiotherapy was an effective and well-tolerated treatment.
October 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
Bikram Shrestha, Bernard Kim, Alison Huffstetler
MALT: Mucosa-associated lymphoid tissue (MALT)-type lymphoma is a relatively rare disease; nevertheless, it is the third most common lymphoma type, accounting for 5-7% of all non-Hodgkin lymphomas. Case series and retrospective analysis published in the literature have suggested that extra gastrointestinal (GI) MALT-type lymphoma can occur simultaneously with MALT-type lymphoma involving the GI tract. We report the case of a healthy, 64-year-old Caucasian male who presented with progressive fatigue, non-productive cough, and worsening exertional shortness of breath for 3 months who was subsequently diagnosed with gastric extra-nodal marginal zone B-cell lymphoma or MALToma with simultaneous metastasis to the lung (bronchi) based on biopsy reports...
2016: Journal of Community Hospital Internal Medicine Perspectives
Keiichiro Fujii, Ken-Ichiro Ishibashi, Junki Kato, Jushin Kan, Kana Fujii, Yohei Ito, Hisashi Takino, Ayako Masaki, Takayuki Murase, Hiroshi Inagaki
Mucosa-associated lymphoid tissue (MALT) lymphoma mainly consists of three types of tumor B cells, small (centrocyte-like), scattered large transformed, and intraepithelial. However, it is difficult to differentiate tumor B cells from reactive B cells at the cellular level. We examined five cases of API2-MALT1 fusion-positive MALT lymphoma of the lung. A single paraffin section for each case was subjected to sequential retrieval of whole-slide imaging (WSI) data of hematoxylin and eosin (HE) staining, immunofluorescence staining for CD79a, and fluorescence in situ hybridization (FISH) for the MALT1 split...
September 6, 2016: Virchows Archiv: An International Journal of Pathology
Keiki Nagaharu, Yuki Kageyama, Takuya Watanabe, Takanori Yamaguchi, Ryugo Ito, Youichirou Baba, Masahiro Masuya, Riuko Ohashi, Keiki Kawakami
Crystal-storing histiocytosis (CSH) is characterized by the accumulation of large histiocytes with intracytoplasmic crystallized immunoglobulin and is typically associated with hematological malignancies. A 69-year-old man, who had a history of left nephrectomy and chemotherapy for renal pelvic cancer six years earlier, had received a CT scan every year thereafter and a small nodule was found in the left lower lobe of his lungs two years prior to the current presentation. Because of progression of this pulmonary nodule, he underwent pulmonary lobectomy on suspicion of lung cancer...
August 2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
Edvin Mulalic, Samir Delibegovic
INTRODUCTION: MALT lymphoma accounts for 7-8% of all B-cell lymphomas and at least 50% of primary gastric lymphoma, with the highest incidence at between 50 and 60 years of age. Aggressive forms are rare, as are indications for multi-visceral resection. CASE STUDY: A patient, 33 years old, was admitted to the tertiary hospital due to a biopsy at a small community hospital confirming adenocarcinoma of the stomach. She was Helicobacter pylori positive. CT showed thickening of the fundus and corpus wall, up to 2...
June 2016: Medical Archives
Yin Liu, Yinyan Tangsun, Yonglong Xiao, Deping Zhang, Min Cao
Tissue eosinophilia is rarely observed in cases of non-Hodgkin's lymphoma of B cell origin. The present study describes a rare case of mucosa-associated lymphoid tissue (MALT) lymphoma, which was initially misdiagnosed as eosinophilic pneumonia. The initial diagnosis was formed based on the results of chest radiography, peripheral eosinophilia tests and bronchoalveolar lavage, and the clinical course of the patient. Following administration of methylprednisolone (40 mg/day) for 4 days and oral administration of prednisolone (30 mg/day), the clinical course rapidly improved and the eosinophil count immediately decreased a to normal level...
September 2016: Oncology Letters
Maria Harmati, Edina Gyukity-Sebestyen, Gabriella Dobra, Gabriella Terhes, Edit Urban, Gabor Decsi, Neda Mimica-Dukić, Marija Lesjak, Nataša Simin, Bernadett Pap, Istvan B Nemeth, Krisztina Buzas
BACKGROUND: Helicobacter pylori can cause many gastrointestinal and also extra-gastrointestinal disorders and is a major risk factor for gastric carcinoma and MALT lymphoma. Currently, numerous antibiotic-based therapies are available; however, these therapies have numerous drawbacks, mainly due to increasing prevalence of antibiotic resistant strains. Thus, there is an urgent need to develop novel therapeutic agents against H. pylori infections. MATERIALS AND METHODS: In this study, the anti-H...
August 31, 2016: Helicobacter
Marino Venerito, Riccardo Vasapolli, Peter Malfertheiner
Helicobacter pylori (H. pylori) is a Gram negative spiraliform bacterium that is commonly found in the stomach. H. pylori infection is still one of the world's most frequent infections, present in the stomachs of approximately one-half of the world's people. H. pylori infection is etiologically linked to histologic chronic active gastritis, peptic ulcer disease, and primary B-cell gastric lymphoma (gastric MALT lymphoma) and represents the major risk factor for the development of sporadic non-cardia gastric cancer (GC) of both intestinal and diffuse type...
2016: Advances in Experimental Medicine and Biology
José Francisco Juanmartiñena Fernández, Eduardo Albéniz, Iñaki Fernández-Urién, Marta Montes Díaz, Juan José Vila Costas
No abstract text is available yet for this article.
August 23, 2016: Medicina Clínica
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