A case of gastric mucosa-associated lymphoid tissue lymphoma in which magnified endoscopy with narrow band imaging was useful in the diagnosis

Nonaka, Kouichi; Ishikawa, Kinya; Arai, Satoru; Nakazato, Masamitsu; Shimizu, Michio; Sakurai, Takaki; Nagata, Koji; Nishimura, Makoto; Togawa, Osamu; Ochiai, Yasutoshi; Sasaki, Yutaka; Kita, Hiroto

doi:10.4253/wjge.v4.i4.151

Cited by 25 publications

(32 citation statements)

References 20 publications

(19 reference statements)

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“…We defined TLA on the images of abnormal blood vessels resembling from the trunk of a tree, in which the glandular structure was lost, by NBI observation . Ono et al .…”

Section: Discussionmentioning

confidence: 99%

“…It has already been reported that lymphoma cells migrate into the lamina propria mucosae and ischemia leads to vascular endothelial growth factor (VEGF) activity. Neovascularization induced by VEGF might be related to the TLA feature . Therefore, a target biopsy may contribute to an inaccurate diagnosis.…”

Section: Discussionmentioning

confidence: 99%

“…In cases in which MALT lymphoma was observed, we defined TLA on images with abnormal blood vessels resembling branches from the trunk of a tree in which the glandular structure was lost (Fig. ) . In magnified NBI, the inside of the whole stomach was closely observed for some time, with centering of lesions, at weak to intermediate magnification after conventional observation.…”

Section: Methodsmentioning

confidence: 99%

“…Even when MALT lymphoma is suspected, it is sometimes difficult to make a definitive diagnosis, even after biopsy. We previously reported that a tree‐like appearance (TLA) is a characteristic finding of MALT lymphoma by narrow‐band imaging (NBI) magnifying endoscopy and it is valuable in the selection of an optimal biopsy site in MALT lymphoma …”

Section: Introductionmentioning

confidence: 99%

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Is narrow‐band imaging useful for histological evaluation of gastric mucosa‐associated lymphoid tissue lymphoma after treatment?

Nonaka

Ohata

Matsuhashi

et al. 2013

Digestive Endoscopy

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“…We defined TLA on the images of abnormal blood vessels resembling from the trunk of a tree, in which the glandular structure was lost, by NBI observation . Ono et al .…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Is narrow‐band imaging useful for histological evaluation of gastric mucosa‐associated lymphoid tissue lymphoma after treatment?

Nonaka

Ohata

Matsuhashi

et al. 2013

Digestive Endoscopy

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“…Recently, the usefulness of magnifying endoscopy in detecting gastrointestinal lesions has been given attention [39] , and magnifying endoscopy with narrowband imaging (MNBI) is proposed to be a useful technique to diagnose gastric MALT lymphomas [32,40,41] . Interestingly, Nonaka et al [41] reported that MNBI was useful in not only detecting gastric MALT lymphomas but also in evaluating their response to eradication therapy.…”

Section: Table 2 Previous Reports On Helicobacter Pylori -Negative Gamentioning

confidence: 99%

Helicobacter pylori-negative gastric mucosa-associated lymphoid tissue lymphomas: A review

Asano

Iijima

Koike

et al. 2015

WJG

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Since Isaacson and Wright first reported on the extranodal marginal zone B-cell lymphoma of the stomach in 1983, following studies have clarified many aspects of this disease. We now know that the stomach is the most affected organ by this disease, and approximately One possibility is that genetic alterations result in nuclear factor-kappa B (NF-κB) activation. Among these alterations, t(11;18)(q21;q21) is more frequently observed in H. pylori -negative gastric MALT lymphomas, and such translocation results in the synthesis of fusion protein API2-MALT1, which causes canonical and noncanonical NF-κB activation. Another possibility is infection with bacteria other than H. pylori . This could explain why H. pylori eradication therapy can cure some proportions of H. pylori -negative gastric MALT lymphoma patients, although the bacteria responsible for MALT lymphomagenesis are yet to be defined. Recent advances in endoscopy suggest magnifying endoscopy with narrow band imaging as a useful tool for both detecting gastric MALT lymphoma lesions and judging the response to treatment. A certain proportion of H. pylori -negative gastric MALT lymphoma patients respond to eradication therapy; hence, H. pylori eradication therapy could be considered as a first-line treatment for gastric MALT lymphomas regardless of their H. pylori infection status.

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A case of intestinal T‐cell lymphoma, not otherwise specified, that showed characteristic findings by magnified endoscopy combined with narrow‐band imaging

Hirose,

Saito,

Nishiguchi

et al. 2023

DEN Open

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T‐cell lymphoma in the gastrointestinal tract (intestinal T‐cell lymphoma, [ITCL]) is rare. ITCL, not otherwise specified (ITCL, NOS) which is a type of ITCL is particularly rare. There are few case reports of ITCL, NOS but no previous reports describe its endoscopic features. In this report, the 69‐year‐old man was diagnosed with ITCL, NOS. Colonoscopy revealed the elevated legion and edematous mucosa with focal depressions in the lower rectum. On the depressed legions, magnifying endoscopy combined with narrow‐band imaging detected the disappearance of glandular structure and branching abnormal blood vessels like a tree. These findings were similar to the tree‐like appearance, which has been described as a unique feature of gastric mucosal‐associated lymphoid tissue lymphoma. The targeted biopsy of the tree‐like appearance showed abnormal histopathological findings which fit the definition of ITCL, NOS. He was treated with chemotherapy and achieved complete remission. As is the case of gastric mucosal‐associated lymphoid tissue lymphoma, the tree‐like appearance is possibly the unique sign of ITCL, NOS. We report the endoscopic features of ITCL, NOS and show characteristic findings by magnifying endoscopy combined with narrow‐band imaging.

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A case of gastric mucosa-associated lymphoid tissue lymphoma in which magnified endoscopy with narrow band imaging was useful in the diagnosis

Cited by 25 publications

References 20 publications

Is narrow‐band imaging useful for histological evaluation of gastric mucosa‐associated lymphoid tissue lymphoma after treatment?

Is narrow‐band imaging useful for histological evaluation of gastric mucosa‐associated lymphoid tissue lymphoma after treatment?

Helicobacter pylori-negative gastric mucosa-associated lymphoid tissue lymphomas: A review

A case of intestinal T‐cell lymphoma, not otherwise specified, that showed characteristic findings by magnified endoscopy combined with narrow‐band imaging

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