A squamous metaplasia in a gastric ulcer scar of the antrum

Cho, Young-Seok; Kim, Hyung-Keun; Ji, Jeong‐Seon; Kim, Byung‐Wook; Chae, Hiun-Suk; Han, Sok-Won; Choi, Kyu-Yong; Chung, In‐Sik

doi:10.3748/wjg.14.1296

Cited by 6 publications

(8 citation statements)

References 10 publications

(7 reference statements)

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“…These features support the hypothesis that squamous metaplasia arises from multipotent stem cells located in the esophagogastric junction ( 13 ). In contrast, the emergence of squamous metaplasia in other parts of the stomach has also been reported, including the antrum ( 17 ) and the prepylorus ( 18 ). Given that whitish lesions without glandular structures are the representative endoscopic characteristics of gastric squamous metaplasia, endoscopists should recognize these features for a prompt diagnosis.…”

Section: Discussionmentioning

confidence: 99%

Squamous Metaplasia of the Stomach Associated with Lymphoma Infiltration

et al. 2021

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We herein report a patient who presented with follicular lymphoma. Although the stomach was initially intact, mucosal redness and multiple erosions appeared in the gastric body owing to infiltration of the follicular lymphoma cells. Subsequently, a slightly depressed, white area lacking gastric mucosal structure was detected in the lesser curvature of the gastric cardia and body, where lymphoma cell infiltration was also pathologically observed beneath the stratified squamous epithelium. This case indicated that, although infrequent, prolonged mucosal injury owing to lymphoma infiltration can cause squamous metaplasia in the stomach.

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Section: Discussionmentioning

confidence: 99%

Squamous Metaplasia of the Stomach Associated with Lymphoma Infiltration

et al. 2021

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“…In fact, an animal model showed that gastric squamous metaplasia can develop following inflammation induced by injection of pyrogallic acid and methylcholanthrene. 3 In the present case, chronic inflammation due to persistent H. pylori may be responsible for the development and increase in the size of metaplasia.…”

Section: Discussionmentioning

confidence: 60%

Gastric squamous metaplasia observed by image‐enhanced endoscopy

et al. 2023

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A 61‐year‐old Helicobacter pylori‐positive female with gastroesophageal reflux disease has undergone surveillance endoscopy every year for 13 years at Tokyo Medical University Hospital. At the first surveillance in 2009, conventional white light endoscopy showed a 10‐mm whitish slightly depressed lesion at the lesser curvature of the gastric cardia. This lesion gradually increased in size to 15 mm over the 13‐year observational period. Indigo carmine chromoendoscopy, narrow band imaging, and texture and color enhancement imaging in both mode 1 and mode 2 clearly emphasized the presence of a depressed whitish mucosa around the gastric mucosa compared with white light imaging. None of the three image‐enhanced endoscopy techniques showed any abnormality in the vascular or structural pattern. Pathological findings showed squamous epithelium without atypia and revealed no evidence of malignancy in the stomach. We thus report a case of gastric squamous metaplasia without gastric neoplastic lesion in the gastric cardia whose lesions were endoscopically observed to change the size for more than 10 years and whose lesions were endoscopically evaluated with a texture and color enhancement imaging mode 1 and mode 2 and narrow band imaging.

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“…In the stomach, it predominantly appears in the lesser curvature. So far the underlying metaplasia pathogenesis is unknown and whether it represents or not a premalignant lesion is yet to be clarified [11]. In this case, Helicobacter pylori infection might have contributed for chronic inflammation, despite no metaplastic focus was found in the specimen.…”

Section: Discussionmentioning

confidence: 82%

Primary pure squamous cell carcinoma of the stomach: Unique case in one institution

Pereira¹,

Magalhães²,

Almeida³

et al. 2018

Int J Case Rep Images

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Introduction: Pure primary gastric squamous cell carcinoma is rare, accounting for 0.04-0.07% of all gastric cancers. The pathogenesis and behaviour are unclear and treatment strategy is controversial, and so, the prognosis is poor in almost all reported cases. The authors describe a rare case of long survival of the disease, and an unique case in an institution. Case Report: A Caucasian woman was referred to our hospital by a tertiary centre with a nonhealing, histologically inconclusive ulcer. Histologic examination of the biopsy taken during a repeated esophagogastroduodenoscopy revealed squamous cell carcinoma. The proposed treatment was total gastrectomy with D2 lymphadenectomy. Squamous cell tumor with no dysplasia or metaplasia was found in the specimen. Adjuvant chemotherapy was done with no relapse evident even 18 months

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A squamous metaplasia in a gastric ulcer scar of the antrum

Cited by 6 publications

References 10 publications

Squamous Metaplasia of the Stomach Associated with Lymphoma Infiltration

Squamous Metaplasia of the Stomach Associated with Lymphoma Infiltration

Gastric squamous metaplasia observed by image‐enhanced endoscopy

Primary pure squamous cell carcinoma of the stomach: Unique case in one institution

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