Rapid Development of a Hemorrhagic Hyperplastic Polyp in a Patient with Evolving Autoimmune Gastritis after Helicobacter pylori Eradication.

Tohru Kotera, Takahiro Takemoto, Ryoji Kushima, Ken Haruma

Abstract readCase Reports

In one paragraph

Article in Internal medicine (Tokyo, Japan), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Helicobacter pylori Gastritis as an Initial Presentation of Evolving Autoimmune Gastritis: A Report of Two Cases.Internal medicine (Tokyo, Japan) · 2026
Article

4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Tohru KoteraDepartment of Medical Examination, Uji-Tokushukai Medical Center, Japan.

Takahiro TakemotoDepartment of Gastroenterology, Uji-Tokushukai Medical Center, Japan.

Ryoji KushimaDepartment of Pathology, Shiga University of Medical Science, Japan.

Ken HarumaDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In 2020, a 56-year-old woman with a history of Helicobacter pylori (H. pylori) eradication 9 years previously presented with a hemorrhagic hyperplastic polyp. Endoscopic and histological findings led to the diagnosis of advanced-stage autoimmune gastritis (AIG). A review of endoscopic findings from 2014 was available, and narrow-band imaging showed swelling of the gastric areas, characteristic of early-stage AIG. Together with the rapid growth of a hyperplastic polyp, these findings suggest a case of AIG that rapidly exacerbated after eradication. To our knowledge, this is the first case report of a rapidly developing hemorrhagic hyperplastic polyp associated with AIG after H. pylori eradication.

Indexed as

Autoimmune DiseasesGastritisHelicobacter InfectionsHelicobacter pyloriPolypsFemaleHumansHyperplasiaMiddle Agedautoimmune gastritiseradication therapygastric hyperplastic polypgastrointestinal bleedingHelicobacter pylori

Identifiers

PMID39924242

DOI10.2169/internalmedicine.4701-24

PMCPMC12425570

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