scholarly journals Radiotherapy for localized gastric mucosa–associated lymphoid tissue lymphoma: long-term outcomes over 10 years

2017 ◽  
Vol 58 (4) ◽  
pp. 537-542 ◽  
Author(s):  
Yu Ohkubo ◽  
Yoshihiro Saito ◽  
Hiroki Ushijima ◽  
Masahiro Onishi ◽  
Tomoko Kazumoto ◽  
...  
Keyword(s):  
Gastric Mucosa ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Residual Disease ◽  
Distant Metastases ◽  
Gastric Malt Lymphoma ◽  
Long Term Outcomes ◽  
Abdominal Lymph Node

Abstract This study aimed to assess the long-term outcomes of radiotherapy in patients with localized gastric mucosa–associated lymphoid tissue (MALT) lymphoma. Twenty-seven patients with Stage I gastric MALT lymphoma were treated with radiotherapy from 1999 to 2010. The median age was 65 years (range: 31–84). Fifteen patients were Helicobacter pylori–negative. Thirteen patients were treated with definitive radiotherapy alone. The other 14 patients who had refractory or residual disease following a prior treatment received salvage radiotherapy. The median dose of the radiotherapy was 30 Gy in 20 fractions (range: 30–39.5 Gy). The median follow-up period was 121 months (range: 8–176 months). The 5- and 10-year overall survival rates for all patients were 92% and 87%, respectively. No patients died from MALT lymphoma. Three patients died of other diseases at 8, 33 and 74 months after radiotherapy (myocardial infarction, pneumonia and hepatocellular carcinoma, respectively). No cases of local recurrence were observed during the follow-up period. There were no serious late gastric, liver or kidney complications during a median follow-up period of over 10 years. Two patients remain alive with distant metastases: a lung metastasis and an abdominal lymph node metastasis at 104 months and 21 months after radiotherapy, respectively. Excellent long-term local control was observed in patients with localized gastric MALT lymphoma after radiotherapy. However, lifelong follow-up should be conducted to detect cases of late recurrence, especially distant metastases.

Long-Term Persistence of Monoclonal B Cells After Cure of Helicobacter pylori Infection and Complete Histologic Remission in Gastric Mucosa–Associated Lymphoid Tissue B-Cell Lymphoma

2001 ◽  
Vol 19 (6) ◽  
pp. 1600-1609 ◽  
Author(s):  
Christian Thiede ◽  
Thomas Wündisch ◽  
Birgit Alpen ◽  
Beatrix Neubauer ◽  
Andrea Morgner ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
B Cells ◽  
Sequence Analysis ◽  
Gastric Mucosa ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Gastric Malt Lymphoma ◽  
Low Grade ◽  
H Pylori

PURPOSE: Cure of Helicobacter pylori infection is associated with remission induction in the majority of patients with low-grade gastric mucosa associated lymphoid tissue (MALT) lymphoma in localized stages; however, limited data exist as to whether these patients may be cured of their lymphoma. The present study was performed to investigate whether the polymerase chain reaction (PCR) for the rearranged immunoglobulin heavy chain region may be used to define “molecular” remission. PATIENTS AND METHODS: Ninety-seven patients who suffered from low-grade gastric MALT lymphoma stage IE were observed with central pathology and molecular biology after cure of H pylori infection. PCR was performed with the use of consensus primers for the framework regions 1, 2, and 3 and monoclonality was corroborated by sequence analysis. In selected cases, microdissection was performed to study the origin of the monoclonal B cells. RESULTS: Of the 97 patients, 77 obtained complete endoscopic and histologic remission (CR). Twenty of 44 patients with PCR monoclonality at diagnosis and with sufficient molecular follow-up displayed monoclonal bands for a median time of 20.5 months after CR (range, 0 to 50.4 months). These B cells were related to the original lymphoma clone by sequence analysis. Microdissection analysis identified basal lymphoid aggregates as the source of these monoclonal B cells. Local relapse occurred in and was observed by PCR in four patients. All four patients displayed monoclonal PCR before relapse, and three of these four showed ongoing PCR monoclonality throughout their course, indicating the persistence of malignant cells. CONCLUSION: Half of all patients with gastric MALT lymphoma show long-term PCR monoclonality up to several years after cure of H pylori infection and CR. Patients with monoclonal PCR should be observed closely, whereas long-term PCR negativity may indicate cure of the disease.

scholarly journals CXCR4 PET/MRI for follow-up of gastric mucosa-associated lymphoid tissue lymphoma after first-line H. pylori eradication

Blood ◽  
2021 ◽  
Author(s):  
Marius Mayerhoefer ◽  
Markus Raderer ◽  
Wolfgang Lamm ◽  
Michael Weber ◽  
Barbara Kiesewetter ◽  
...  
Keyword(s):  
Gastric Mucosa ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Control Group ◽  
Gastric Malt Lymphoma ◽  
First Line ◽  
Cell Counts ◽  
Standardized Uptake Values ◽  
H Pylori

Post-treatment evaluation of gastric mucosa-associated lymphoid tissue (MALT) lymphoma currently relies on esophagogastroduodenoscopy with histological assessment of biopsies. Overexpression of the G-protein-coupled C-X-C chemokine receptor type 4 (CXCR4) has been previously observed in MALT lymphoma. The aim of this prospective study was to evaluate PET with the novel CXCR4 tracer [68Ga]Pentixafor as a potential alternative to follow-up biopsies for assessment of residual disease (non-complete remission (CR)) after first-line H. pylori (HP) eradication. Forty-six post-HP eradication [68Ga]Pentixafor-PET/MRI examinations of 26 gastric MALT lymphoma patients, and 20 [68Ga]Pentixafor-PET/MRI examinations of 20 control group patients without lymphoma, were analyzed. In the MALT lymphoma group, time-matched gastric biopsies were used as reference standard, and showed CR in six cases. Pooled examination-based accuracy, sensitivity, specificity, and positive and negative predictive value of [68Ga]Pentixafor-PET for detection of residual gastric MALT lymphoma at follow-up, were 97.0%, 95.0%, 100.0%, 100.0%, and 92.9%, respectively. Maximum and mean PET standardized uptake values showed moderate correlation with immunohistochemistry-based CXCR4+ cell counts, with correlation coefficients of r=0.51 and r=0.52 (P=0.008 and P=0.006). In conclusion, CXCR4 imaging with [68Ga]Pentixafor-PET may represent a promising test for assessment of residual gastric MALT lymphomas after HP eradication.

scholarly journals Genetic Characterization and Clinical Features of Helicobacter pylori Negative Gastric Mucosa-Associated Lymphoid Tissue Lymphoma

Cancers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2993
Author(s):  
Barbara Kiesewetter ◽  
Christiane Copie-Bergman ◽  
Michael Levy ◽  
Fangtian Wu ◽  
Jehan Dupuis ◽  
...  
Keyword(s):  
Gastric Mucosa ◽  
Signaling Pathways ◽  
Clinical Features ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Targeted Sequencing ◽  
Clinicopathological Parameters ◽  
Gastric Malt Lymphoma ◽  
Genetic Changes ◽  
H Pylori

Background: In Western countries, the prevalence of gastric mucosa-associated lymphoid tissue (MALT) lymphoma has declined over the last three decades. Contemporaneously, H. pylori negative gastric MALT lymphoma is increasingly encountered, and their genetic basis and clinical features remain elusive. Methods: A total of 57 cases of H. pylori negative gastric MALT lymphoma were reviewed and investigated for chromosome translocation by fluorescence in-situ hybridization and for somatic mutations by the targeted sequencing of 93 genes. Results: MALT1 translocation, most likely t(11;18)(q21;q21)/BIRC3-MALT1, was detected in 39% (22/57) cases, and IGH translocation was further seen in 12 MALT1-negative cases, together accounting for 60% of the cohort. Targeted sequencing was successful in 35 cases, and showed frequent mutations in NF-κB signaling pathways (TNFAIP3 = 23%, CARD11 = 9%, MAP3K14 = 9%), together affecting 14 cases (40%). The NF-κB pathway mutations were mutually exclusive from MALT1, albeit not IGH translocation, altogether occurring in 86% of cases. There was no significant correlation between the genetic changes and clinicopathological parameters. The patients showed a median of progression-free survival (PFS) of 66.3 months, and a significant superior PFS when treated with systemic versus antibiotic therapy (p = 0.004). Conclusion: H. pylori negative gastric MALT lymphoma is characterized by highly frequent genetic changes in the NF-κB signaling pathways.

Long-term clinical outcome of gastric MALT lymphoma after eradication ofHelicobacter pylori: a multicentre cohort follow-up study of 420 patients in Japan

Gut ◽  
2011 ◽  
Vol 61 (4) ◽  
pp. 507-513 ◽  
Author(s):  
Shotaro Nakamura ◽  
Toshiro Sugiyama ◽  
Takayuki Matsumoto ◽  
Katsunori Iijima ◽  
Shouko Ono ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Malt Lymphoma ◽  
Gastric Malt Lymphoma ◽  
Follow Up Study ◽  
Multicentre Cohort

Long-term follow-up of patients with low-grade gastric MALT lymphoma after eradication of helicobacter pylori

2000 ◽  
Vol 118 (4) ◽  
pp. A764
Author(s):  
In Sung Song ◽  
You Sun Kim ◽  
Il Ju Choi ◽  
Joo Sung Kim ◽  
Hyun Chae Jung ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Malt Lymphoma ◽  
Gastric Malt Lymphoma ◽  
Low Grade ◽  
Long Term Follow Up

scholarly journals Long-Term Clinical Outcome of Gastric MALT Lymphoma After Eradication of Helicobacter pylori : A Multicenter Retrospective Follow-up Study of 423 Patients in Japan

2011 ◽  
Vol 140 (5) ◽  
pp. S-872
Author(s):  
Shotaro Nakamura ◽  
Katsunori Iijima ◽  
Shouko Ono ◽  
Masahiro Tajika ◽  
Akira Tari ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Clinical Outcome ◽  
Malt Lymphoma ◽  
Gastric Malt Lymphoma ◽  
Follow Up Study

scholarly journals An unusual presentation of gastric mucosa-associated lymphoid tissue (MALT) lymphoma following blunt abdominal trauma

2019 ◽  
Vol 12 (10) ◽  
pp. e230878
Author(s):  
Karim Nashed ◽  
Keith Lai ◽  
Tyler Stevens ◽  
Gareth Morris-Stiff
Keyword(s):  
Gastric Mucosa ◽  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Motor Vehicle ◽  
Large Mass ◽  
Vehicle Collision ◽  
Repeat Endoscopy ◽  
Multiple Biopsies ◽  
H Pylori

A 79-year-old woman presented to the emergency department following a motor vehicle collision. As part of her workup she underwent a CT scan which identified a large mass containing calcifications centred around the gastric antrum, and while being assessed she produced 500 mL of haematemesis. An endoscopy revealed an area of friable mucosa the nature of which was uncertain, and multiple biopsies revealed amyloid deposition and active Helicobacter pylori gastritis. Following review of imaging and pathology, a diagnosis of gastric mucosa-associated lymphoid tissue (MALT) lymphoma was established. She was treated with quadruple therapy for the H. pylori and at 6-month follow-up she is asymptomatic with repeat endoscopy revealing healing of the ulceration and no biopsy evidence of H. pylori or MALT.

Long Term Outcome of Gastric MALT Lymphoma Patients Treated with Anti-Helicobacter (Antibiotic and Proton-Pump Inhibitor) Regimens.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 2583-2583 ◽  
Author(s):  
Claudio Chini ◽  
Graziella Pinotti ◽  
Anastasios Stathis ◽  
Ilaria Proserpio ◽  
Francesco Bertoni ◽  
...  
Keyword(s):  
Malt Lymphoma ◽  
Proton Pump ◽  
Initial Treatment ◽  
Eradication Therapy ◽  
Gastric Malt Lymphoma ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Histological Score

Abstract Background: Primary mucosa-associated lymphoid tissue (MALT) lymphoma of the stomach is often associated with Helicobacter pylori (Hp) infection and Hp eradication therapy is widely accepted as initial treatment. The aim of this study is to report the clinical characteristics and long term outcome in a large series of patients with gastric MALT lymphoma exclusively treated with Hp eradication therapy. Methods: 105 newly diagnosed gastric MALT lymphoma patients (54 men and 51 women) with median age of 64 years (range 20–94) referred to our institutions between June 1990 and November 2006 were eligible for the study. Staging was performed according to the Lugano staging system. All patients received anti-Hp eradication therapy as initial treatment with standard regimens combining antibiotics (usually Amoxicillin, Clarithromycin and/or Metronidazole) and proton-pump inhibitors (Omeprazole in most cases). Responses, evaluated with regular endoscopic biopsies every 3–6 months were graded according to the Wotherspoon’s histological score system. Results: 100 patients had stage I and 5 patients had stage IIE1 disease. Hp was positive in 83 patients (79.5%) and was eradicated in all positive patients but 19 patients required a second line antibiotic therapy. Symptoms disappeared or markedly diminished and endoscopic features improved in almost all patients after Hp eradication. Histological regression of the gastric lymphoma was achieved in 78 of 102 evaluable patients (76%, 95% C.I.; 67%–84%) with histological complete response (Wotherspoon’s score 0–2) in 66 and partial response (score 3) in 12 patients. Of the 78 patients who achieved a lymphoma regression, the histological remission was consistently confirmed at follow-up endoscopies in 28 patients (36%), while 33 (42%) had histological score fluctuations (from 0–4), sometimes with transient histological relapses followed by spontaneous histological remissions. Ten patients had a frank lymphoma relapse (2 with high-grade transformation) and 7 died in remission for other causes. At a median follow up time of 6.3 years, the overall survival in the entire group is 92% at 5 years (95% C.I.; 84%–96%), 83% at 10 years (95% C.I.; 70%–91%) and 78% at 15 years (95% C.I.; 62%–88%). Only one patient died for lymphoma (after histological transformation). Additional tumors were observed in 22%. A history of autoimmune disease was present in 15% of the patients and did not affect the outcome. Conclusions: Hp eradication usually results in long term disease control, independently of the lymphoma pathological remission status. A watch and wait policy seems safe in patients with local histological relapse with no endoscopic evidence of gross disease.

Long-term follow-up in low-grade gastric MALT lymphoma (LGGML): Effect of persistent monoclonality (m+) on outcome

2004 ◽  
Vol 22 (14_suppl) ◽  
pp. 6560-6560
Author(s):  
C. Pegoraro ◽  
A. Savio ◽  
S. Beghelli ◽  
A. Scarpa ◽  
G. Zamboni ◽  
...  
Keyword(s):  
Malt Lymphoma ◽  
Gastric Malt Lymphoma ◽  
Low Grade ◽  
Long Term Follow Up
Sign in / Sign up

Export Citation Format

Share Document