Evidence map›Paper›PMID 33434962›Full record

ArticleClinical endoscopy2021

White Opaque Substance, a New Optical Marker on Magnifying Endoscopy: Usefulness in Diagnosing Colorectal Epithelial Neoplasms.

Kazutomo Yamasaki, Takashi Hisabe, Kenshi Yao, Hiroshi Ishihara, Kentaro Imamura, Tatsuhisa Yasaka, Hiroshi Tanabe, Akinori Iwashita, Toshiharu Ueki

Open access · goldAbstract read
In one paragraph

Article in Clinical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 58% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Article
4 · The record

Corrections and comments

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

9 authors at 1 institution in 1 country.

Kazutomo YamasakiDepartment of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Takashi HisabeDepartment of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Kenshi YaoDepartment of Endoscopy, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Hiroshi IshiharaDepartment of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Kentaro ImamuraDepartment of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Tatsuhisa YasakaDepartment of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Hiroshi TanabeDepartment of Pathology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Akinori IwashitaDepartment of Pathology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Toshiharu UekiDepartment of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Fukuoka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsA white substance that is opaque to endoscopic light is sometimes observed in the epithelium during narrowband imaging with magnifying endoscopy of gastric or colorectal epithelial neoplasms. This prospective observational study aimed to determine whether the morphology of the white opaque substance (WOS) allows differential diagnosis between colorectal adenoma and carcinoma.

methodsA consecutive series of patients with colorectal adenomas or early carcinomas who underwent endoscopic resection or surgical excision were studied. The morphology of the WOS was determined based on endoscopic images before the histopathological diagnosis was performed. The primary outcome was the diagnostic performance of an irregular WOS as a marker of colorectal carcinoma.

resultsThe study analyzed 125 lesions. A total of 33 lesions showed an irregular WOS, and 92 lesions showed a regular WOS. Among the 33 lesions found to show an irregular WOS, 30 were carcinomas. Among the 92 lesions showing a regular WOS, 79 were adenomas. With irregular WOS as a marker of carcinoma, the diagnostic accuracy was 87%, sensitivity was 91%, and specificity was 86%.

conclusionThis study demonstrated the potential usefulness of the morphology of the WOS as a marker for the differential diagnosis between adenoma and carcinoma in cases of colorectal epithelial neoplasms.

Indexed as

Colorectal neoplasmsMagnifying endoscopyNarrow band imagingWhite opaque substance

Identifiers

PMID33434962
PMCPMC8357577
OpenAlexW3118335586

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.