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Characteristics of magnified endoscopic images of gastric extranodal marginal zone B-cell lymphoma of the mucosa-associated lymphoid tissue, including changes after treatment.

Abstract：

BACKGROUND:The utility of magnifying endoscopy for diagnosis of epithelial tumors has been reported, but there are few reports for nonepithelial tumors. OBJECTIVE:To determine the characteristics of magnified images of gastric extranodal marginal zone B-cell lymphoma of the mucosa-associated lymphoid tissue (MALT lymphoma) before and after treatment. DESIGN:This was a retrospective study. SETTING:Endoscopy Unit, Hokkaido University Hospital. PATIENTS:Eleven patients diagnosed with MALT lymphoma were enrolled. INTERVENTIONS:The microstructural pattern, collecting venules, and abnormal vessels in gastric MALT lymphoma were assessed before treatment and at 4 to 7 months after treatment by using magnifying endoscopy. MAIN OUTCOME MEASUREMENT AND RESULTS: The characteristics of magnified endoscopic images before treatment were the disappearance of gastric pits and the appearance of abnormal vessels. Ten cases of Helicobacter pylori-infected MALT lymphoma were treated by H. pylori eradication, and 1 H. pylori-negative case was treated by radiation therapy after eradication therapy. Ten patients achieved complete disease remission. After the treatment, recovery of gastric pits and subepithelial capillary network, and the disappearance of abnormal vessels were revealed by magnifying endoscopy. LIMITATION:This was a small pilot study. CONCLUSIONS:Magnified findings of gastric MALT lymphoma before and after therapy seem to correlate with complete response and no response.

journal_name

Gastrointest Endosc

journal_title

Gastrointestinal endoscopy

authors

Ono S,Kato M,Ono Y,Itoh T,Kubota K,Nakagawa M,Shimizu Y,Asaka M

doi

10.1016/j.gie.2008.02.066

subject

Has Abstract

pub_date

2008-10-01 00:00:00

pages

624-31

issue

4

eissn

0016-5107

issn

1097-6779

pii

S0016-5107(08)00323-4

journal_volume

68

pub_type

杂志文章

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